CVE-2026-97031

The golang packages provide the Go programming language compiler.

Security Fix(es):

• net/http: golang: golang: Denial of Service via crafted HTTP Range headers (CVE-2026-78667)

• crypto/tls: golang: crypto/tls: Denial of Service via multiple ECH outer extension references (CVE-2026-97031)

• net/http: net/http/internal/http2: golang.org/x/net/http2: net/http: Denial of Service via excessive HTTP/2 SETTINGS frames (CVE-2026-78669)

• golang: crypto/x509: Go: crypto/x509: mitigation for security concerns with a specific Certificate Authority (CVE-2026-111943)

Bug Fix(es) and Enhancement(s):

• Update Go to version 1.26.10+1 [rhel-10.2.z] (JIRA:Rocky Linux-287191)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The golang packages provide the Go programming language compiler.

Security Fix(es):

• net/http: golang: golang: Denial of Service via crafted HTTP Range headers (CVE-2026-78667)

• crypto/tls: golang: crypto/tls: Denial of Service via multiple ECH outer extension references (CVE-2026-97031)

• net/http: net/http/internal/http2: golang.org/x/net/http2: net/http: Denial of Service via excessive HTTP/2 SETTINGS frames (CVE-2026-78669)

• golang: crypto/x509: Go: crypto/x509: mitigation for security concerns with a specific Certificate Authority (CVE-2026-111943)

Bug Fix(es) and Enhancement(s):

• Update Go to version 1.26.10+1 [rhel-9.8.z] (JIRA:Rocky Linux-287192)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Go Toolset provides the Go programming language tools and libraries. Go is alternatively known as golang.

Security Fix(es):

• net/http: golang: golang: Denial of Service via crafted HTTP Range headers (CVE-2026-78667)

• crypto/tls: golang: crypto/tls: Denial of Service via multiple ECH outer extension references (CVE-2026-97031)

• net/http: net/http/internal/http2: golang.org/x/net/http2: net/http: Denial of Service via excessive HTTP/2 SETTINGS frames (CVE-2026-78669)

• golang: crypto/x509: Go: crypto/x509: mitigation for security concerns with a specific Certificate Authority (CVE-2026-111943)

Bug Fix(es) and Enhancement(s):

• Update Go to version 1.26.10+1 [rhel-8.10.z] (JIRA:Rocky Linux-287193)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Grafana is an open source, feature rich metrics dashboard and graph editor for Graphite, InfluxDB & OpenTSDB.

Security Fix(es):

• net/http: golang: golang: Denial of Service via crafted HTTP Range headers (CVE-2026-78667)

• crypto/tls: golang: crypto/tls: Denial of Service via multiple ECH outer extension references (CVE-2026-97031)

• net/http: net/http/internal/http2: golang.org/x/net/http2: net/http: Denial of Service via excessive HTTP/2 SETTINGS frames (CVE-2026-78669)

• crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates (CVE-2026-111943)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The Grafana plugin for Performance Co-Pilot includes datasources for scalable time series from pmseries and Redis, live PCP metrics and bpftrace scripts from pmdabpftrace, as well as several dashboards.

Security Fix(es):

• crypto/tls: golang: crypto/tls: Denial of Service via multiple ECH outer extension references (CVE-2026-97031)

• net/http: net/http/internal/http2: golang.org/x/net/http2: net/http: Denial of Service via excessive HTTP/2 SETTINGS frames (CVE-2026-78669)

• crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates (CVE-2026-111943)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

HTTP reverse proxy, backed by IPP-over-USB connection to device. It enables driverless support for USB devices capable of using IPP-over-USB protocol.

Security Fix(es):

• net/http: golang: golang: Denial of Service via crafted HTTP Range headers (CVE-2026-78667)

• crypto/tls: golang: crypto/tls: Denial of Service via multiple ECH outer extension references (CVE-2026-97031)

• net/http: net/http/internal/http2: golang.org/x/net/http2: net/http: Denial of Service via excessive HTTP/2 SETTINGS frames (CVE-2026-78669)

• crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates (CVE-2026-111943)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The Grafana plugin for Performance Co-Pilot includes datasources for scalable time series from pmseries and Redis, live PCP metrics and bpftrace scripts from pmdabpftrace, as well as several dashboards.

Security Fix(es):

• crypto/tls: golang: crypto/tls: Denial of Service via multiple ECH outer extension references (CVE-2026-97031)

• net/http: net/http/internal/http2: golang.org/x/net/http2: net/http: Denial of Service via excessive HTTP/2 SETTINGS frames (CVE-2026-78669)

• crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates (CVE-2026-111943)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The Grafana plugin for Performance Co-Pilot includes datasources for scalable time series from pmseries and Redis, live PCP metrics and bpftrace scripts from pmdabpftrace, as well as several dashboards.

Security Fix(es):

• crypto/tls: golang: crypto/tls: Denial of Service via multiple ECH outer extension references (CVE-2026-97031)

• net/http: net/http/internal/http2: golang.org/x/net/http2: net/http: Denial of Service via excessive HTTP/2 SETTINGS frames (CVE-2026-78669)

• crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates (CVE-2026-111943)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Grafana is an open source, feature rich metrics dashboard and graph editor for Graphite, InfluxDB & OpenTSDB.

Security Fix(es):

• grafana: Grafana: Information disclosure vulnerability in Unified Alerting (CVE-2026-17183)

• net/http: golang: golang: Denial of Service via crafted HTTP Range headers (CVE-2026-78667)

• crypto/tls: golang: crypto/tls: Denial of Service via multiple ECH outer extension references (CVE-2026-97031)

• net/http: net/http/internal/http2: golang.org/x/net/http2: net/http: Denial of Service via excessive HTTP/2 SETTINGS frames (CVE-2026-78669)

• crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates (CVE-2026-111943)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Collector with the supported components for a Rocky Enterprise Software Foundation build of OpenTelemetry

Security Fix(es):

• net/http: golang: golang: Denial of Service via crafted HTTP Range headers (CVE-2026-78667)

• crypto/tls: golang: crypto/tls: Denial of Service via multiple ECH outer extension references (CVE-2026-97031)

• net/textproto: mime/multipart: golang: golang: Denial of Service via memory limit bypass in multipart form parsing (CVE-2026-94440)

• net/http: net/http/internal/http2: golang.org/x/net/http2: net/http: Denial of Service via excessive HTTP/2 SETTINGS frames (CVE-2026-78669)

• crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates (CVE-2026-111943)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Collector with the supported components for a Rocky Enterprise Software Foundation build of OpenTelemetry

Security Fix(es):

• net/http: golang: golang: Denial of Service via crafted HTTP Range headers (CVE-2026-78667)

• crypto/tls: golang: crypto/tls: Denial of Service via multiple ECH outer extension references (CVE-2026-97031)

• net/textproto: mime/multipart: golang: golang: Denial of Service via memory limit bypass in multipart form parsing (CVE-2026-94440)

• net/http: net/http/internal/http2: golang.org/x/net/http2: net/http: Denial of Service via excessive HTTP/2 SETTINGS frames (CVE-2026-78669)

• crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates (CVE-2026-111943)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Delve is a debugger for the Go programming language. The goal of the project is to provide a simple, full featured debugging tool for Go. Delve should be easy to invoke and easy to use. Chances are if you're using a debugger, things aren't going your way. With that in mind, Delve should stay out of your way as much as possible.

Security Fix(es):

• crypto/tls: golang: crypto/tls: Denial of Service via multiple ECH outer extension references (CVE-2026-97031)

• crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates (CVE-2026-111943)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Delve is a debugger for the Go programming language. The goal of the project is to provide a simple, full featured debugging tool for Go. Delve should be easy to invoke and easy to use. Chances are if you're using a debugger, things aren't going your way. With that in mind, Delve should stay out of your way as much as possible.

Security Fix(es):

• net/http: golang: golang: Denial of Service via crafted HTTP Range headers (CVE-2026-78667)

• crypto/tls: golang: crypto/tls: Denial of Service via multiple ECH outer extension references (CVE-2026-97031)

• net/textproto: mime/multipart: golang: golang: Denial of Service via memory limit bypass in multipart form parsing (CVE-2026-94440)

• net/http: net/http/internal/http2: golang.org/x/net/http2: net/http: Denial of Service via excessive HTTP/2 SETTINGS frames (CVE-2026-78669)

• crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates (CVE-2026-111943)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Multiple ECH outer extension references are not permitted under RFC 9849; previously, a client could send a well-crafted packet that could trigger memory exhaustion in the server process by specifying multiple references. We now reject these as malformed and curb the memory amplification vector as a result.

The golang packages provide the Go programming language compiler.

Security Fix(es):

• net/http: golang: golang: Denial of Service via crafted HTTP Range headers (CVE-2026-78667)
• crypto/tls: golang: crypto/tls: Denial of Service via multiple ECH outer extension references (CVE-2026-97031)
• net/http: net/http/internal/http2: golang.org/x/net/http2: net/http: Denial of Service via excessive HTTP/2 SETTINGS frames (CVE-2026-78669)
• golang: crypto/x509: Go: crypto/x509: mitigation for security concerns with a specific Certificate Authority (CVE-2026-111943)

Bug Fix(es) and Enhancement(s):

• Update Go to version 1.26.10+1 [almalinux-10.2.z] (JIRA:AlmaLinux-287191)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The golang packages provide the Go programming language compiler.

Security Fix(es):

• net/http: golang: golang: Denial of Service via crafted HTTP Range headers (CVE-2026-78667)
• crypto/tls: golang: crypto/tls: Denial of Service via multiple ECH outer extension references (CVE-2026-97031)
• net/http: net/http/internal/http2: golang.org/x/net/http2: net/http: Denial of Service via excessive HTTP/2 SETTINGS frames (CVE-2026-78669)
• golang: crypto/x509: Go: crypto/x509: mitigation for security concerns with a specific Certificate Authority (CVE-2026-111943)

Bug Fix(es) and Enhancement(s):

• Update Go to version 1.26.10+1 [almalinux-9.8.z] (JIRA:AlmaLinux-287192)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Go Toolset provides the Go programming language tools and libraries. Go is alternatively known as golang.

Security Fix(es):

• net/http: golang: golang: Denial of Service via crafted HTTP Range headers (CVE-2026-78667)
• crypto/tls: golang: crypto/tls: Denial of Service via multiple ECH outer extension references (CVE-2026-97031)
• net/http: net/http/internal/http2: golang.org/x/net/http2: net/http: Denial of Service via excessive HTTP/2 SETTINGS frames (CVE-2026-78669)
• golang: crypto/x509: Go: crypto/x509: mitigation for security concerns with a specific Certificate Authority (CVE-2026-111943)

Bug Fix(es) and Enhancement(s):

• Update Go to version 1.26.10+1 [almalinux-8.10.z] (JIRA:AlmaLinux-287193)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Grafana is an open source, feature rich metrics dashboard and graph editor for Graphite, InfluxDB & OpenTSDB.

Security Fix(es):

• net/http: golang: golang: Denial of Service via crafted HTTP Range headers (CVE-2026-78667)
• crypto/tls: golang: crypto/tls: Denial of Service via multiple ECH outer extension references (CVE-2026-97031)
• net/http: net/http/internal/http2: golang.org/x/net/http2: net/http: Denial of Service via excessive HTTP/2 SETTINGS frames (CVE-2026-78669)
• crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates (CVE-2026-111943)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The Grafana plugin for Performance Co-Pilot includes datasources for scalable time series from pmseries and Redis, live PCP metrics and bpftrace scripts from pmdabpftrace, as well as several dashboards.

Security Fix(es):

• crypto/tls: golang: crypto/tls: Denial of Service via multiple ECH outer extension references (CVE-2026-97031)
• net/http: net/http/internal/http2: golang.org/x/net/http2: net/http: Denial of Service via excessive HTTP/2 SETTINGS frames (CVE-2026-78669)
• crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates (CVE-2026-111943)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

HTTP reverse proxy, backed by IPP-over-USB connection to device. It enables
driverless support for USB devices capable of using IPP-over-USB protocol.

Security Fix(es):

• net/http: golang: golang: Denial of Service via crafted HTTP Range headers (CVE-2026-78667)
• crypto/tls: golang: crypto/tls: Denial of Service via multiple ECH outer extension references (CVE-2026-97031)
• net/http: net/http/internal/http2: golang.org/x/net/http2: net/http: Denial of Service via excessive HTTP/2 SETTINGS frames (CVE-2026-78669)
• crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates (CVE-2026-111943)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The Grafana plugin for Performance Co-Pilot includes datasources for scalable time series from pmseries and Redis, live PCP metrics and bpftrace scripts from pmdabpftrace, as well as several dashboards.

Security Fix(es):

• crypto/tls: golang: crypto/tls: Denial of Service via multiple ECH outer extension references (CVE-2026-97031)
• net/http: net/http/internal/http2: golang.org/x/net/http2: net/http: Denial of Service via excessive HTTP/2 SETTINGS frames (CVE-2026-78669)
• crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates (CVE-2026-111943)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The Grafana plugin for Performance Co-Pilot includes datasources for scalable time series from pmseries and Redis, live PCP metrics and bpftrace scripts from pmdabpftrace, as well as several dashboards.

Security Fix(es):

• crypto/tls: golang: crypto/tls: Denial of Service via multiple ECH outer extension references (CVE-2026-97031)
• net/http: net/http/internal/http2: golang.org/x/net/http2: net/http: Denial of Service via excessive HTTP/2 SETTINGS frames (CVE-2026-78669)
• crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates (CVE-2026-111943)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Grafana is an open source, feature rich metrics dashboard and graph editor for Graphite, InfluxDB & OpenTSDB.

Security Fix(es):

• grafana: Grafana: Information disclosure vulnerability in Unified Alerting (CVE-2026-17183)
• net/http: golang: golang: Denial of Service via crafted HTTP Range headers (CVE-2026-78667)
• crypto/tls: golang: crypto/tls: Denial of Service via multiple ECH outer extension references (CVE-2026-97031)
• net/http: net/http/internal/http2: golang.org/x/net/http2: net/http: Denial of Service via excessive HTTP/2 SETTINGS frames (CVE-2026-78669)
• crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates (CVE-2026-111943)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Collector with the supported components for a Red Hat build of OpenTelemetry

Security Fix(es):

• net/http: golang: golang: Denial of Service via crafted HTTP Range headers (CVE-2026-78667)
• crypto/tls: golang: crypto/tls: Denial of Service via multiple ECH outer extension references (CVE-2026-97031)
• net/textproto: mime/multipart: golang: golang: Denial of Service via memory limit bypass in multipart form parsing (CVE-2026-94440)
• net/http: net/http/internal/http2: golang.org/x/net/http2: net/http: Denial of Service via excessive HTTP/2 SETTINGS frames (CVE-2026-78669)
• crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates (CVE-2026-111943)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Collector with the supported components for a Red Hat build of OpenTelemetry

Security Fix(es):

• net/http: golang: golang: Denial of Service via crafted HTTP Range headers (CVE-2026-78667)
• crypto/tls: golang: crypto/tls: Denial of Service via multiple ECH outer extension references (CVE-2026-97031)
• net/textproto: mime/multipart: golang: golang: Denial of Service via memory limit bypass in multipart form parsing (CVE-2026-94440)
• net/http: net/http/internal/http2: golang.org/x/net/http2: net/http: Denial of Service via excessive HTTP/2 SETTINGS frames (CVE-2026-78669)
• crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates (CVE-2026-111943)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Delve is a debugger for the Go programming language. The goal of the project is to provide a simple, full featured debugging tool for Go. Delve should be easy to invoke and easy to use. Chances are if you're using a debugger, things aren't going your way. With that in mind, Delve should stay out of your way as much as possible.

Security Fix(es):

• crypto/tls: golang: crypto/tls: Denial of Service via multiple ECH outer extension references (CVE-2026-97031)
• crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates (CVE-2026-111943)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Delve is a debugger for the Go programming language. The goal of the project is to provide a simple, full featured debugging tool for Go. Delve should be easy to invoke and easy to use. Chances are if you're using a debugger, things aren't going your way. With that in mind, Delve should stay out of your way as much as possible.

Security Fix(es):

• net/http: golang: golang: Denial of Service via crafted HTTP Range headers (CVE-2026-78667)
• crypto/tls: golang: crypto/tls: Denial of Service via multiple ECH outer extension references (CVE-2026-97031)
• net/textproto: mime/multipart: golang: golang: Denial of Service via memory limit bypass in multipart form parsing (CVE-2026-94440)
• net/http: net/http/internal/http2: golang.org/x/net/http2: net/http: Denial of Service via excessive HTTP/2 SETTINGS frames (CVE-2026-78669)
• crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates (CVE-2026-111943)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Multiple ECH outer extension references are not permitted under RFC 9849; previously, a client could send a well-crafted packet that could trigger memory exhaustion in the server process by specifying multiple references. We now reject these as malformed and curb the memory amplification vector as a result.

Multiple ECH outer extension references are not permitted under RFC 9849; previously, a client could send a well-crafted packet that could trigger memory exhaustion in the server process by specifying multiple references. We now reject these as malformed and curb the memory amplification vector as a result.

Multiple ECH outer extension references are not permitted under RFC 9849; previously, a client could send a well-crafted packet that could trigger memory exhaustion in the server process by specifying multiple references. We now reject these as malformed and curb the memory amplification vector as a result.

Multiple ECH outer extension references are not permitted under RFC 9849; previously, a client could send a well-crafted packet that could trigger memory exhaustion in the server process by specifying multiple references.

We now reject these as malformed and curb the memory amplification vector as a result.

net/http: HTTP/2 server crash due to HPACK encoder race net/http: HTTP/2 server memory exhaustion due to Trailer headers crypto/tls: reject malformed ECH outer extension references cmd/go: checksum bypass for golang.org/fips140 cmd/go: checksum database bypass for golang.org/toolchain html/template: reset context tracking on consecutive template expressions html/template: recognize |yield| as regexp preceder keyword net/textproto, mime/multipart: memory limit bypass when parsing MIME headers net/http: HTTP/1 client connection desynchronization after CONNECT rejection net/http: HTTP/1 server connection desynchronization after 2xx CONNECT response net/http: excessive CPU consumption from repeated initial window changes net/http: HTTP/2 transport accepts malformed framing-related headers net/http: lack of limit on size of parsed Range headers net/http: double flow control refund on HTTP/2 server streams

These are all security issues fixed in the go1.26-1.26.9-1.1 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the go1.27-1.27.2-1.1 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the rclone-1.75.2-1.1 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the kyverno-1.19.2-1.1 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the mihomo-1.19.33-1.1 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the tempo-cli-3.1.1-1.1 package on the GA media of openSUSE Tumbleweed.

This update for go1.27 fixes the following issues:

Update to go1.27.2 (bsc#1272545):

• CVE-2026-56857: os: Root.Mkdir(All) can follow junctions out of the root on Windows (bsc#1284766).
• CVE-2026-56866: net/http: HTTP/1 client connection desynchronization after CONNECT rejection (bsc#1284767).
• CVE-2026-78659: net/http: HTTP/2 server memory exhaustion due to Trailer headers (bsc#1284768).
• CVE-2026-78660: net/http: HTTP/2 transport accepts malformed framing-related headers (bsc#1284769).
• CVE-2026-78663: net/http: double flow control refund on HTTP/2 server streams (bsc#1284770).
• CVE-2026-78667: net/http: lack of limit on size of parsed Range headers (bsc#1284771).
• CVE-2026-78669: net/http: excessive CPU consumption from repeated initial window changes (bsc#1284772).
• CVE-2026-94439: net/http: HTTP/1 server connection desynchronization after 2xx CONNECT response (bsc#1284773).
• CVE-2026-94440: net/textproto, mime/multipart: memory limit bypass when parsing MIME headers (bsc#1284774).
• CVE-2026-94444: cmd/go: checksum bypass for golang.org/fips140 (bsc#1284775).
• CVE-2026-94447: cmd/go: checksum database bypass for golang.org/toolchain (bsc#1284776).
• CVE-2026-94448: html/template: reset context tracking on consecutive template expressions (bsc#1284777).
• CVE-2026-97030: html/template: recognize yield as regexp preceder keyword (bsc#1284778).
• CVE-2026-97031: crypto/tls: reject malformed ECH outer extension references (bsc#1284779).
• CVE-2026-97032: net/http: HTTP/2 server crash due to HPACK encoder race (bsc#1284780).

Changes:

• go1.27.2 (released 2026-10-08) includes security fixes to the go command, and the crypto/tls, html/template, net/http, net/textproto, and os packages, as well as bug fixes to the compiler, the linker, the runtime, the cover tool, the go fix command, vet, and the compress/flate, crypto/mlkem, encoding/json, encoding/json/v2, net/http, and os packages.

• go#81084 encoding/json: Unmarshal leaves +/-Inf in the destination on float overflow in Go 1.27
• go#81145 runtime: mutex profiling can deadlock Windows asynchronous preemption during GC
• go#81226 runtime: netpoll: eventfd ready for something unexpected
• go#81229 encoding/json: json.UnsupportedValueError returns an Invalid Value instead of a Float value
• go#81233 compress/flate: Writer with a preset dictionary emits the dictionary into the output stream
• go#81252 lib/fips140: fix ML-KEM CAST and re-seal v1.26.0
• go#81296 cmd/compile: internal compiler error: MoveLoop too small
• go#81306 cmd/compile: go1.27.0 unified export data loses method order, breaking objectpath, crashing staticcheck
• go#81324 plugin: loading multiple plugins corrupts stdlib types in Go 1.27
• go#81353 runtime: Go 1.27.0: SIGSEGV crash with generic function + pointer type parameter + embedded interface
• go#81362 encoding/json: Marshal now honors MarshalText for string-kind map keys
• go#81374 os,internal/poll: NewFile on an inherited overlapped stdout pipe hangs a sibling's WriteFile (Windows)
• go#81389 cmd/fix, x/tools/go/analysis/passes/modernize: errorsastype rewrites errors.As target interface that does not implement error
• go#81402 os: go 1.25.x regression on RemoveAll for oldest Windows 10 build 10240
• go#81411 net/http: concurrent response body Read and Close can deadlock with automatic draining in Go 1.27
• go#81437 runtime: intermittent SIGBUS (unaligned access) in netpoll on mips64le (Go 1.27)
• go#81469 runtime: ios/arm64 binaries executed outside an app bundle change working directory on startup
• go#81515 net/http: readLoop reads Response.ContentLength after Body.Close returns
• go#81516 net/http: Response.Body.Close returns the earlier Read error after a non-EOF Read failure
• go#81522 net/http: Response.Trailer race due to response body draining
• go#81580 testing: go test -v doubles ESC (0x1b) in t.Log output since Go 1.27, corrupting ANSI colors in some terminals
• go#81666 cmd/compile: Embedded interfaces…

This update for go1.26 fixes the following issues:

Update to go 1.26.9 (bsc#1255111):

• CVE-2026-56857: os: Root.Mkdir(All) can follow junctions out of the root on Windows (bsc#1284766).
• CVE-2026-56866: net/http: HTTP/1 client connection desynchronization after CONNECT rejection (bsc#1284767).
• CVE-2026-78659: net/http: HTTP/2 server memory exhaustion due to Trailer headers (bsc#1284768).
• CVE-2026-78660: net/http: HTTP/2 transport accepts malformed framing-related headers (bsc#1284769).
• CVE-2026-78667: net/http: lack of limit on size of parsed Range headers (bsc#1284771).
• CVE-2026-94439: net/http: HTTP/1 server connection desynchronization after 2xx CONNECT response (bsc#1284773).
• CVE-2026-94440: net/textproto, mime/multipart: memory limit bypass when parsing MIME headers (bsc#1284774).
• CVE-2026-94444: cmd/go: checksum bypass for golang.org/fips140 (bsc#1284775).
• CVE-2026-94447: cmd/go: checksum database bypass for golang.org/toolchain (bsc#1284776).
• CVE-2026-94448: html/template: reset context tracking on consecutive template expressions (bsc#1284777).
• CVE-2026-97030: html/template: recognize yield as regexp preceder keyword (bsc#1284778).
• CVE-2026-97031: crypto/tls: reject malformed ECH outer extension references (bsc#1284779).
• CVE-2026-97032: net/http: HTTP/2 server crash due to HPACK encoder race (bsc#1284780).

Changes:

• go1.26.9 (released 2026-10-08) includes security fixes to the go command, and the crypto/tls, html/template, net/http, net/textproto, and os packages, as well as bug fixes to the compiler, the linker, the runtime, vet, and the crypto/mlkem, net/http, and os packages.

• go#81144 runtime: mutex profiling can deadlock Windows asynchronous preemption during GC
• go#81225 runtime: netpoll: eventfd ready for something unexpected
• go#81251 lib/fips140: fix ML-KEM CAST and re-seal v1.26.0
• go#81295 cmd/compile: internal compiler error: MoveLoop too small
• go#81318 os,internal/poll: NewFile on an inherited overlapped stdout pipe hangs a sibling's WriteFile (Windows)
• go#81401 os: go 1.25.x regression on RemoveAll for oldest Windows 10 build 10240
• go#81436 runtime: intermittent SIGBUS (unaligned access) in netpoll on mips64le (Go 1.27)
• go#81668 cmd/compile: go1.27 miscompiles &slice[i].Field on an append-built slice; returned pointer aliases reused memory
• go#81689 cmd/compile: slice allocation reuses stack backing store incorrectly
• go#81860 cmd/go: vet reports no diagnostics for a package that an earlier run vetted as a dependency
• go#81889 cmd/link: plugin.Open fails on macOS 27: LC_DYLD_CHAINED_FIXUPS seg_count not updated after combining DWARF

This update for go1.27 fixes the following issues:

Update to go1.27.2 (bsc#1272545):

• CVE-2026-56857: os: Root.Mkdir(All) can follow junctions out of the root on Windows (bsc#1284766).
• CVE-2026-56866: net/http: HTTP/1 client connection desynchronization after CONNECT rejection (bsc#1284767).
• CVE-2026-78659: net/http: HTTP/2 server memory exhaustion due to Trailer headers (bsc#1284768).
• CVE-2026-78660: net/http: HTTP/2 transport accepts malformed framing-related headers (bsc#1284769).
• CVE-2026-78663: net/http: double flow control refund on HTTP/2 server streams (bsc#1284770).
• CVE-2026-78667: net/http: lack of limit on size of parsed Range headers (bsc#1284771).
• CVE-2026-78669: net/http: excessive CPU consumption from repeated initial window changes (bsc#1284772).
• CVE-2026-94439: net/http: HTTP/1 server connection desynchronization after 2xx CONNECT response (bsc#1284773).
• CVE-2026-94440: net/textproto, mime/multipart: memory limit bypass when parsing MIME headers (bsc#1284774).
• CVE-2026-94444: cmd/go: checksum bypass for golang.org/fips140 (bsc#1284775).
• CVE-2026-94447: cmd/go: checksum database bypass for golang.org/toolchain (bsc#1284776).
• CVE-2026-94448: html/template: reset context tracking on consecutive template expressions (bsc#1284777).
• CVE-2026-97030: html/template: recognize yield as regexp preceder keyword (bsc#1284778).
• CVE-2026-97031: crypto/tls: reject malformed ECH outer extension references (bsc#1284779).
• CVE-2026-97032: net/http: HTTP/2 server crash due to HPACK encoder race (bsc#1284780).

Changes:

• go1.27.2 (released 2026-10-08) includes security fixes to the go command, and the crypto/tls, html/template, net/http, net/textproto, and os packages, as well as bug fixes to the compiler, the linker, the runtime, the cover tool, the go fix command, vet, and the compress/flate, crypto/mlkem, encoding/json, encoding/json/v2, net/http, and os packages.

• go#81084 encoding/json: Unmarshal leaves +/-Inf in the destination on float overflow in Go 1.27
• go#81145 runtime: mutex profiling can deadlock Windows asynchronous preemption during GC
• go#81226 runtime: netpoll: eventfd ready for something unexpected
• go#81229 encoding/json: json.UnsupportedValueError returns an Invalid Value instead of a Float value
• go#81233 compress/flate: Writer with a preset dictionary emits the dictionary into the output stream
• go#81252 lib/fips140: fix ML-KEM CAST and re-seal v1.26.0
• go#81296 cmd/compile: internal compiler error: MoveLoop too small
• go#81306 cmd/compile: go1.27.0 unified export data loses method order, breaking objectpath, crashing staticcheck
• go#81324 plugin: loading multiple plugins corrupts stdlib types in Go 1.27
• go#81353 runtime: Go 1.27.0: SIGSEGV crash with generic function + pointer type parameter + embedded interface
• go#81362 encoding/json: Marshal now honors MarshalText for string-kind map keys
• go#81374 os,internal/poll: NewFile on an inherited overlapped stdout pipe hangs a sibling's WriteFile (Windows)
• go#81389 cmd/fix, x/tools/go/analysis/passes/modernize: errorsastype rewrites errors.As target interface that does not implement error
• go#81402 os: go 1.25.x regression on RemoveAll for oldest Windows 10 build 10240
• go#81411 net/http: concurrent response body Read and Close can deadlock with automatic draining in Go 1.27
• go#81437 runtime: intermittent SIGBUS (unaligned access) in netpoll on mips64le (Go 1.27)
• go#81469 runtime: ios/arm64 binaries executed outside an app bundle change working directory on startup
• go#81515 net/http: readLoop reads Response.ContentLength after Body.Close returns
• go#81516 net/http: Response.Body.Close returns the earlier Read error after a non-EOF Read failure
• go#81522 net/http: Response.Trailer race due to response body draining
• go#81580 testing: go test -v doubles ESC (0x1b) in t.Log output since Go 1.27, corrupting ANSI colors in some terminals
• go#81666 cmd/compile: Embedded interfaces…

This update for go1.26 fixes the following issues:

Update to go 1.26.9 (bsc#1255111):

• CVE-2026-56857: os: Root.Mkdir(All) can follow junctions out of the root on Windows (bsc#1284766).
• CVE-2026-56866: net/http: HTTP/1 client connection desynchronization after CONNECT rejection (bsc#1284767).
• CVE-2026-78659: net/http: HTTP/2 server memory exhaustion due to Trailer headers (bsc#1284768).
• CVE-2026-78660: net/http: HTTP/2 transport accepts malformed framing-related headers (bsc#1284769).
• CVE-2026-78667: net/http: lack of limit on size of parsed Range headers (bsc#1284771).
• CVE-2026-94439: net/http: HTTP/1 server connection desynchronization after 2xx CONNECT response (bsc#1284773).
• CVE-2026-94440: net/textproto, mime/multipart: memory limit bypass when parsing MIME headers (bsc#1284774).
• CVE-2026-94444: cmd/go: checksum bypass for golang.org/fips140 (bsc#1284775).
• CVE-2026-94447: cmd/go: checksum database bypass for golang.org/toolchain (bsc#1284776).
• CVE-2026-94448: html/template: reset context tracking on consecutive template expressions (bsc#1284777).
• CVE-2026-97030: html/template: recognize yield as regexp preceder keyword (bsc#1284778).
• CVE-2026-97031: crypto/tls: reject malformed ECH outer extension references (bsc#1284779).
• CVE-2026-97032: net/http: HTTP/2 server crash due to HPACK encoder race (bsc#1284780).

Changes:

• go1.26.9 (released 2026-10-08) includes security fixes to the go command, and the crypto/tls, html/template, net/http, net/textproto, and os packages, as well as bug fixes to the compiler, the linker, the runtime, vet, and the crypto/mlkem, net/http, and os packages.

• go#81144 runtime: mutex profiling can deadlock Windows asynchronous preemption during GC
• go#81225 runtime: netpoll: eventfd ready for something unexpected
• go#81251 lib/fips140: fix ML-KEM CAST and re-seal v1.26.0
• go#81295 cmd/compile: internal compiler error: MoveLoop too small
• go#81318 os,internal/poll: NewFile on an inherited overlapped stdout pipe hangs a sibling's WriteFile (Windows)
• go#81401 os: go 1.25.x regression on RemoveAll for oldest Windows 10 build 10240
• go#81436 runtime: intermittent SIGBUS (unaligned access) in netpoll on mips64le (Go 1.27)
• go#81668 cmd/compile: go1.27 miscompiles &slice[i].Field on an append-built slice; returned pointer aliases reused memory
• go#81689 cmd/compile: slice allocation reuses stack backing store incorrectly
• go#81860 cmd/go: vet reports no diagnostics for a package that an earlier run vetted as a dependency
• go#81889 cmd/link: plugin.Open fails on macOS 27: LC_DYLD_CHAINED_FIXUPS seg_count not updated after combining DWARF

This update for go1.27 fixes the following issues:

Update to go1.27.2 (bsc#1272545):

• CVE-2026-56857: os: Root.Mkdir(All) can follow junctions out of the root on Windows (bsc#1284766).
• CVE-2026-56866: net/http: HTTP/1 client connection desynchronization after CONNECT rejection (bsc#1284767).
• CVE-2026-78659: net/http: HTTP/2 server memory exhaustion due to Trailer headers (bsc#1284768).
• CVE-2026-78660: net/http: HTTP/2 transport accepts malformed framing-related headers (bsc#1284769).
• CVE-2026-78663: net/http: double flow control refund on HTTP/2 server streams (bsc#1284770).
• CVE-2026-78667: net/http: lack of limit on size of parsed Range headers (bsc#1284771).
• CVE-2026-78669: net/http: excessive CPU consumption from repeated initial window changes (bsc#1284772).
• CVE-2026-94439: net/http: HTTP/1 server connection desynchronization after 2xx CONNECT response (bsc#1284773).
• CVE-2026-94440: net/textproto, mime/multipart: memory limit bypass when parsing MIME headers (bsc#1284774).
• CVE-2026-94444: cmd/go: checksum bypass for golang.org/fips140 (bsc#1284775).
• CVE-2026-94447: cmd/go: checksum database bypass for golang.org/toolchain (bsc#1284776).
• CVE-2026-94448: html/template: reset context tracking on consecutive template expressions (bsc#1284777).
• CVE-2026-97030: html/template: recognize yield as regexp preceder keyword (bsc#1284778).
• CVE-2026-97031: crypto/tls: reject malformed ECH outer extension references (bsc#1284779).
• CVE-2026-97032: net/http: HTTP/2 server crash due to HPACK encoder race (bsc#1284780).

Changes:

• go1.27.2 (released 2026-10-08) includes security fixes to the go command, and the crypto/tls, html/template, net/http, net/textproto, and os packages, as well as bug fixes to the compiler, the linker, the runtime, the cover tool, the go fix command, vet, and the compress/flate, crypto/mlkem, encoding/json, encoding/json/v2, net/http, and os packages.

• go#81084 encoding/json: Unmarshal leaves +/-Inf in the destination on float overflow in Go 1.27
• go#81145 runtime: mutex profiling can deadlock Windows asynchronous preemption during GC
• go#81226 runtime: netpoll: eventfd ready for something unexpected
• go#81229 encoding/json: json.UnsupportedValueError returns an Invalid Value instead of a Float value
• go#81233 compress/flate: Writer with a preset dictionary emits the dictionary into the output stream
• go#81252 lib/fips140: fix ML-KEM CAST and re-seal v1.26.0
• go#81296 cmd/compile: internal compiler error: MoveLoop too small
• go#81306 cmd/compile: go1.27.0 unified export data loses method order, breaking objectpath, crashing staticcheck
• go#81324 plugin: loading multiple plugins corrupts stdlib types in Go 1.27
• go#81353 runtime: Go 1.27.0: SIGSEGV crash with generic function + pointer type parameter + embedded interface
• go#81362 encoding/json: Marshal now honors MarshalText for string-kind map keys
• go#81374 os,internal/poll: NewFile on an inherited overlapped stdout pipe hangs a sibling's WriteFile (Windows)
• go#81389 cmd/fix, x/tools/go/analysis/passes/modernize: errorsastype rewrites errors.As target interface that does not implement error
• go#81402 os: go 1.25.x regression on RemoveAll for oldest Windows 10 build 10240
• go#81411 net/http: concurrent response body Read and Close can deadlock with automatic draining in Go 1.27
• go#81437 runtime: intermittent SIGBUS (unaligned access) in netpoll on mips64le (Go 1.27)
• go#81469 runtime: ios/arm64 binaries executed outside an app bundle change working directory on startup
• go#81515 net/http: readLoop reads Response.ContentLength after Body.Close returns
• go#81516 net/http: Response.Body.Close returns the earlier Read error after a non-EOF Read failure
• go#81522 net/http: Response.Trailer race due to response body draining
• go#81580 testing: go test -v doubles ESC (0x1b) in t.Log output since Go 1.27, corrupting ANSI colors in some terminals
• go#81666 cmd/compile: Embedded interfaces…

This update for go1.26 fixes the following issues:

Update to go 1.26.9 (bsc#1255111):

• CVE-2026-56857: os: Root.Mkdir(All) can follow junctions out of the root on Windows (bsc#1284766).
• CVE-2026-56866: net/http: HTTP/1 client connection desynchronization after CONNECT rejection (bsc#1284767).
• CVE-2026-78659: net/http: HTTP/2 server memory exhaustion due to Trailer headers (bsc#1284768).
• CVE-2026-78660: net/http: HTTP/2 transport accepts malformed framing-related headers (bsc#1284769).
• CVE-2026-78667: net/http: lack of limit on size of parsed Range headers (bsc#1284771).
• CVE-2026-94439: net/http: HTTP/1 server connection desynchronization after 2xx CONNECT response (bsc#1284773).
• CVE-2026-94440: net/textproto, mime/multipart: memory limit bypass when parsing MIME headers (bsc#1284774).
• CVE-2026-94444: cmd/go: checksum bypass for golang.org/fips140 (bsc#1284775).
• CVE-2026-94447: cmd/go: checksum database bypass for golang.org/toolchain (bsc#1284776).
• CVE-2026-94448: html/template: reset context tracking on consecutive template expressions (bsc#1284777).
• CVE-2026-97030: html/template: recognize yield as regexp preceder keyword (bsc#1284778).
• CVE-2026-97031: crypto/tls: reject malformed ECH outer extension references (bsc#1284779).
• CVE-2026-97032: net/http: HTTP/2 server crash due to HPACK encoder race (bsc#1284780).

Changes:

• go1.26.9 (released 2026-10-08) includes security fixes to the go command, and the crypto/tls, html/template, net/http, net/textproto, and os packages, as well as bug fixes to the compiler, the linker, the runtime, vet, and the crypto/mlkem, net/http, and os packages.

• go#81144 runtime: mutex profiling can deadlock Windows asynchronous preemption during GC
• go#81225 runtime: netpoll: eventfd ready for something unexpected
• go#81251 lib/fips140: fix ML-KEM CAST and re-seal v1.26.0
• go#81295 cmd/compile: internal compiler error: MoveLoop too small
• go#81318 os,internal/poll: NewFile on an inherited overlapped stdout pipe hangs a sibling's WriteFile (Windows)
• go#81401 os: go 1.25.x regression on RemoveAll for oldest Windows 10 build 10240
• go#81436 runtime: intermittent SIGBUS (unaligned access) in netpoll on mips64le (Go 1.27)
• go#81668 cmd/compile: go1.27 miscompiles &slice[i].Field on an append-built slice; returned pointer aliases reused memory
• go#81689 cmd/compile: slice allocation reuses stack backing store incorrectly
• go#81860 cmd/go: vet reports no diagnostics for a package that an earlier run vetted as a dependency
• go#81889 cmd/link: plugin.Open fails on macOS 27: LC_DYLD_CHAINED_FIXUPS seg_count not updated after combining DWARF

This update for go1.26-openssl fixes the following issues:

Update to version 1.26.10 (bsc#1255111, jsc#SLE-18320):

• CVE-2026-56857: os: Root.Mkdir(All) can follow junctions out of the root on Windows (bsc#1284766).
• CVE-2026-56866: net/http: HTTP/1 client connection desynchronization after CONNECT rejection (bsc#1284767).
• CVE-2026-78659: net/http: HTTP/2 server memory exhaustion due to Trailer headers (bsc#1284768).
• CVE-2026-78660: net/http: HTTP/2 transport accepts malformed framing-related headers (bsc#1284769).
• CVE-2026-78663: net/http: double flow control refund on HTTP/2 server streams (bsc#1284770).
• CVE-2026-78667: net/http: lack of limit on size of parsed Range headers (bsc#1284771).
• CVE-2026-78669: net/http: excessive CPU consumption from repeated initial window changes (bsc#1284772).
• CVE-2026-94439: net/http: HTTP/1 server connection desynchronization after 2xx CONNECT response (bsc#1284773).
• CVE-2026-94440: net/textproto, mime/multipart: memory limit bypass when parsing MIME headers (bsc#1284774).
• CVE-2026-94444: cmd/go: checksum bypass for golang.org/fips140 (bsc#1284775).
• CVE-2026-94447: cmd/go: checksum database bypass for golang.org/toolchain (bsc#1284776).
• CVE-2026-94448: html/template: reset context tracking on consecutive template expressions (bsc#1284777).
• CVE-2026-97030: html/template: recognize yield as regexp preceder keyword (bsc#1284778).
• CVE-2026-97031: crypto/tls: reject malformed ECH outer extension references (bsc#1284779).
• CVE-2026-97032: net/http: HTTP/2 server crash due to HPACK encoder race (bsc#1284780).
• CVE-2026-111943: crypto/x509: mitigation for security concerns with a specific Certificate Authority (bsc#1286317, bsc#1286261).

Changes:

• go#81144 runtime: mutex profiling can deadlock Windows asynchronous preemption during GC
• go#81225 runtime: netpoll: eventfd ready for something unexpected
• go#81251 lib/fips140: fix ML-KEM CAST and re-seal v1.26.0
• go#81295 cmd/compile: internal compiler error: MoveLoop too small
• go#81318 os,internal/poll: NewFile on an inherited overlapped stdout pipe hangs a sibling's WriteFile (Windows)
• go#81401 os: go 1.25.x regression on RemoveAll for oldest Windows 10 build 10240
• go#81436 runtime: intermittent SIGBUS (unaligned access) in netpoll on mips64le (Go 1.27)
• go#81668 cmd/compile: go1.27 miscompiles &slice[i].Field on an append-built slice; returned pointer aliases reused memory
• go#81689 cmd/compile: slice allocation reuses stack backing store incorrectly
• go#81860 cmd/go: vet reports no diagnostics for a package that an earlier run vetted as a dependency
• go#81889 cmd/link: plugin.Open fails on macOS 27: LC_DYLD_CHAINED_FIXUPS seg_count not updated after combining DWARF
• go#81152 cmd/compile/internal/test: TestMergeLocalsIntegration failures
• go#81113 debug/elf: applyRelocationsPPC was broken by CL 705075
• go#80889 os: TestRootMultiMkdirAllShallow failures on openbsd
• go#80851 cmd/go: pseudo #cgo directive FFLAGS value mixed up with CXXFLAGS in Go 1.26
• go#80827 runtime: async preemption corrupts AVX (YMM) state on netbsd/amd64

This update for go1.26-openssl fixes the following issues:

Update to version 1.26.10 (bsc#1255111, jsc#SLE-18320):

• CVE-2026-56857: os: Root.Mkdir(All) can follow junctions out of the root on Windows (bsc#1284766).
• CVE-2026-56866: net/http: HTTP/1 client connection desynchronization after CONNECT rejection (bsc#1284767).
• CVE-2026-78659: net/http: HTTP/2 server memory exhaustion due to Trailer headers (bsc#1284768).
• CVE-2026-78660: net/http: HTTP/2 transport accepts malformed framing-related headers (bsc#1284769).
• CVE-2026-78663: net/http: double flow control refund on HTTP/2 server streams (bsc#1284770).
• CVE-2026-78667: net/http: lack of limit on size of parsed Range headers (bsc#1284771).
• CVE-2026-78669: net/http: excessive CPU consumption from repeated initial window changes (bsc#1284772).
• CVE-2026-94439: net/http: HTTP/1 server connection desynchronization after 2xx CONNECT response (bsc#1284773).
• CVE-2026-94440: net/textproto, mime/multipart: memory limit bypass when parsing MIME headers (bsc#1284774).
• CVE-2026-94444: cmd/go: checksum bypass for golang.org/fips140 (bsc#1284775).
• CVE-2026-94447: cmd/go: checksum database bypass for golang.org/toolchain (bsc#1284776).
• CVE-2026-94448: html/template: reset context tracking on consecutive template expressions (bsc#1284777).
• CVE-2026-97030: html/template: recognize yield as regexp preceder keyword (bsc#1284778).
• CVE-2026-97031: crypto/tls: reject malformed ECH outer extension references (bsc#1284779).
• CVE-2026-97032: net/http: HTTP/2 server crash due to HPACK encoder race (bsc#1284780).
• CVE-2026-111943: crypto/x509: mitigation for security concerns with a specific Certificate Authority (bsc#1286317, bsc#1286261).

Changes:

• go#81144 runtime: mutex profiling can deadlock Windows asynchronous preemption during GC
• go#81225 runtime: netpoll: eventfd ready for something unexpected
• go#81251 lib/fips140: fix ML-KEM CAST and re-seal v1.26.0
• go#81295 cmd/compile: internal compiler error: MoveLoop too small
• go#81318 os,internal/poll: NewFile on an inherited overlapped stdout pipe hangs a sibling's WriteFile (Windows)
• go#81401 os: go 1.25.x regression on RemoveAll for oldest Windows 10 build 10240
• go#81436 runtime: intermittent SIGBUS (unaligned access) in netpoll on mips64le (Go 1.27)
• go#81668 cmd/compile: go1.27 miscompiles &slice[i].Field on an append-built slice; returned pointer aliases reused memory
• go#81689 cmd/compile: slice allocation reuses stack backing store incorrectly
• go#81860 cmd/go: vet reports no diagnostics for a package that an earlier run vetted as a dependency
• go#81889 cmd/link: plugin.Open fails on macOS 27: LC_DYLD_CHAINED_FIXUPS seg_count not updated after combining DWARF
• go#81152 cmd/compile/internal/test: TestMergeLocalsIntegration failures
• go#81113 debug/elf: applyRelocationsPPC was broken by CL 705075
• go#80889 os: TestRootMultiMkdirAllShallow failures on openbsd
• go#80851 cmd/go: pseudo #cgo directive FFLAGS value mixed up with CXXFLAGS in Go 1.26
• go#80827 runtime: async preemption corrupts AVX (YMM) state on netbsd/amd64