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CVE-2026-33413

etcd: Authorization bypasses in multiple APIs

8.8 HighFix available

etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.4.42, 3.5.28, and 3.6.9, unauthorized users may bypass authentication or authorization checks and call certain etcd functions in clusters that expose the gRPC API to untrusted or partially trusted clients. In unpatched etcd clusters with etcd auth enabled, unauthorized users are able to call MemberList and learn cluster topology, including member IDs and advertised endpoints; call Alarm, which can be abused for operational disruption or denial of service; use Lease APIs, interfering with TTL-based keys and lease ownership; and/or trigger compaction, permanently removing historical revisions and disrupting watch, audit, and recovery workflows. Kubernetes does not rely on etcd’s built-in authentication and authorization. Instead, the API server handles authentication and authorization itself, so typical Kubernetes deployments are not affected. Versions 3.4.42, 3.5.28, and 3.6.9 contain a patch. If upgrading is not immediately possible, reduce exposure by treating the affected RPCs as unauthenticated in practice. Restrict network access to etcd server ports so only trusted components can connect and/or require strong client identity at the transport layer, such as mTLS with tightly scoped client certificate distribution.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
Low
Integrity
Low
Availability
High

Exploit likelihood

0.26%Up 0.2 points since Mar 27, 2026
90%50%10%1%

What each source reports

CVE List Score used 8.8

etcd: Authorization bypasses in multiple APIs

etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.4.42, 3.5.28, and 3.6.9, unauthorized users may bypass authentication or authorization checks and call certain etcd functions in clusters that expose the gRPC API to untrusted or partially trusted clients. In unpatched etcd clusters with etcd auth enabled, unauthorized users are able to call MemberList and learn cluster topology, including member IDs and advertised endpoints; call Alarm, which can be abused for operational disruption or denial of service; use Lease APIs, interfering with TTL-based keys and lease ownership; and/or trigger compaction, permanently removing historical revisions and disrupting watch, audit, and recovery workflows. Kubernetes does not rely on etcd’s built-in authentication and authorization. Instead, the API server handles authentication and authorization itself, so typical Kubernetes deployments are not affected. Versions 3.4.42, 3.5.28, and 3.6.9 contain a patch. If upgrading is not immediately possible, reduce exposure by treating the affected RPCs as unauthenticated in practice. Restrict network access to etcd server ports so only trusted components can connect and/or require strong client identity at the transport layer, such as mTLS with tightly scoped client certificate distribution.

Record
CVE-2026-33413
CVSS 4.0
8.8 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
Weakness
CWE-862
Updated
2026-11-02
EUVDEUVD-2026-16191 8.8

etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.4.42, 3.5.28, and 3.6.9, unauthorized users may bypass authentication or authorization checks and call certain etcd functions in clusters that expose the gRPC API to untrusted or partially trusted clients. In unpatched etcd clusters with etcd auth enabled, unauthorized users are able to call MemberList and learn cluster topology, including member IDs and advertised endpoints; call Alarm, which can be abused for operational disruption or denial of service; use Lease APIs, interfering with TTL-based keys and lease ownership; and/or trigger compaction, permanently removing historical revisions and disrupting watch, audit, and recovery workflows. Kubernetes does not rely on etcd’s built-in authentication and authorization. Instead, the API server handles authentication and authorization itself, so typical Kubernetes deployments are not affected. Versions 3.4.42, 3.5.28, and 3.6.9 contain a patch. If upgrading is not immediately possible, reduce exposure by treating the affected RPCs as unauthenticated in practice. Restrict network access to etcd server ports so only trusted components can connect and/or require strong client identity at the transport layer, such as mTLS with tightly scoped client certificate distribution.

Record
EUVD-2026-16191
CVSS 4.0
8.8 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-q8m4-xhhv-38mg 8.8

etcd: Authorization bypasses in multiple APIs

Impact

What kind of vulnerability is it? Who is impacted?

Multiple vulnerabilities allow unauthorized users to bypass authentication or authorization checks and call certain etcd functions in clusters that expose the gRPC API to untrusted or partially trusted clients.

In unpatched etcd clusters with etcd auth enabled, unauthorized users are able to:

  • call MemberList and learn cluster topology, including member IDs and advertised endpoints
  • call Alarm, which can be abused for operational disruption or denial of service
  • use Lease APIs, interfering with TTL-based keys and lease ownership
  • trigger compaction, permanently removing historical revisions and disrupting watch, audit, and recovery workflows

Kubernetes does not rely on etcd’s built-in authentication and authorization. Instead, the API server handles authentication and authorization itself, so typical Kubernetes deployments are not affected.

Patches

Has the problem been patched? What versions should users upgrade to?

These vulnerabilities are patched in the following versions:

  • etcd 3.6.9
  • etcd 3.5.28
  • etcd 3.4.42

Workarounds

Is there a way for users to fix or remediate the vulnerability without upgrading?

If upgrading is not immediately possible, reduce exposure by treating the affected RPCs as unauthenticated in practice.

  • restrict network access to etcd server ports so only trusted components can connect
  • require strong client identity at the transport layer, such as mTLS with tightly scoped client certificate distribution

Reporters

Community efforts help keep etcd secure

The etcd community thanks Isaac David, bugbunny.ai, Asim Viladi Oglu Manizada, Alex Schapiro & Ahmed Allam from Strix security, Luke Francis, and @OLU-DEVX for reporting these vulnerabilities.

Dependency Between Reported Issues

These issues all originate from the same underlying flaw in the gRPC API layer.

They affect the same API surface and share a common root cause. In practice, the fix is implemented as a single, unified change at the API layer, which resolves all issues together.

Given this, we believe these issues are best treated as a single vulnerability and should be assigned a single CVE.

Record
GHSA-q8m4-xhhv-38mg
CVSS 4.0
8.8 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
Weakness
CWE-862
Updated
2026-11-02
NVD 8.8

etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.4.42, 3.5.28, and 3.6.9, unauthorized users may bypass authentication or authorization checks and call certain etcd functions in clusters that expose the gRPC API to untrusted or partially trusted clients. In unpatched etcd clusters with etcd auth enabled, unauthorized users are able to call MemberList and learn cluster topology, including member IDs and advertised endpoints; call Alarm, which can be abused for operational disruption or denial of service; use Lease APIs, interfering with TTL-based keys and lease ownership; and/or trigger compaction, permanently removing historical revisions and disrupting watch, audit, and recovery workflows. Kubernetes does not rely on etcd’s built-in authentication and authorization. Instead, the API server handles authentication and authorization itself, so typical Kubernetes deployments are not affected. Versions 3.4.42, 3.5.28, and 3.6.9 contain a patch. If upgrading is not immediately possible, reduce exposure by treating the affected RPCs as unauthenticated in practice. Restrict network access to etcd server ports so only trusted components can connect and/or require strong client identity at the transport layer, such as mTLS with tightly scoped client certificate distribution.

Record
CVE-2026-33413
CVSS 4.0
8.8 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-862
Updated
2026-11-02
OSVALPINE-CVE-2026-33413 8.8

etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.4.42, 3.5.28, and 3.6.9, unauthorized users may bypass authentication or authorization checks and call certain etcd functions in clusters that expose the gRPC API to untrusted or partially trusted clients. In unpatched etcd clusters with etcd auth enabled, unauthorized users are able to call MemberList and learn cluster topology, including member IDs and advertised endpoints; call Alarm, which can be abused for operational disruption or denial of service; use Lease APIs, interfering with TTL-based keys and lease ownership; and/or trigger compaction, permanently removing historical revisions and disrupting watch, audit, and recovery workflows. Kubernetes does not rely on etcd’s built-in authentication and authorization. Instead, the API server handles authentication and authorization itself, so typical Kubernetes deployments are not affected. Versions 3.4.42, 3.5.28, and 3.6.9 contain a patch. If upgrading is not immediately possible, reduce exposure by treating the affected RPCs as unauthenticated in practice. Restrict network access to etcd server ports so only trusted components can connect and/or require strong client identity at the transport layer, such as mTLS with tightly scoped client certificate distribution.

Record
ALPINE-CVE-2026-33413
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-03
OSV 8.8

etcd: Authorization bypasses in multiple APIs

etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.4.42, 3.5.28, and 3.6.9, unauthorized users may bypass authentication or authorization checks and call certain etcd functions in clusters that expose the gRPC API to untrusted or partially trusted clients. In unpatched etcd clusters with etcd auth enabled, unauthorized users are able to call MemberList and learn cluster topology, including member IDs and advertised endpoints; call Alarm, which can be abused for operational disruption or denial of service; use Lease APIs, interfering with TTL-based keys and lease ownership; and/or trigger compaction, permanently removing historical revisions and disrupting watch, audit, and recovery workflows. Kubernetes does not rely on etcd’s built-in authentication and authorization. Instead, the API server handles authentication and authorization itself, so typical Kubernetes deployments are not affected. Versions 3.4.42, 3.5.28, and 3.6.9 contain a patch. If upgrading is not immediately possible, reduce exposure by treating the affected RPCs as unauthenticated in practice. Restrict network access to etcd server ports so only trusted components can connect and/or require strong client identity at the transport layer, such as mTLS with tightly scoped client certificate distribution.

Record
CVE-2026-33413
CVSS 4.0
8.8 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
Weakness
CWE-862
Updated
2026-11-02
Show 10 moreShow less
OSVDEBIAN-CVE-2026-33413 8.8

etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.4.42, 3.5.28, and 3.6.9, unauthorized users may bypass authentication or authorization checks and call certain etcd functions in clusters that expose the gRPC API to untrusted or partially trusted clients. In unpatched etcd clusters with etcd auth enabled, unauthorized users are able to call MemberList and learn cluster topology, including member IDs and advertised endpoints; call Alarm, which can be abused for operational disruption or denial of service; use Lease APIs, interfering with TTL-based keys and lease ownership; and/or trigger compaction, permanently removing historical revisions and disrupting watch, audit, and recovery workflows. Kubernetes does not rely on etcd’s built-in authentication and authorization. Instead, the API server handles authentication and authorization itself, so typical Kubernetes deployments are not affected. Versions 3.4.42, 3.5.28, and 3.6.9 contain a patch. If upgrading is not immediately possible, reduce exposure by treating the affected RPCs as unauthenticated in practice. Restrict network access to etcd server ports so only trusted components can connect and/or require strong client identity at the transport layer, such as mTLS with tightly scoped client certificate distribution.

Record
DEBIAN-CVE-2026-33413
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVGHSA-q8m4-xhhv-38mg 8.8

etcd: Authorization bypasses in multiple APIs

Impact

What kind of vulnerability is it? Who is impacted?

Multiple vulnerabilities allow unauthorized users to bypass authentication or authorization checks and call certain etcd functions in clusters that expose the gRPC API to untrusted or partially trusted clients.

In unpatched etcd clusters with etcd auth enabled, unauthorized users are able to:

  • call MemberList and learn cluster topology, including member IDs and advertised endpoints
  • call Alarm, which can be abused for operational disruption or denial of service
  • use Lease APIs, interfering with TTL-based keys and lease ownership
  • trigger compaction, permanently removing historical revisions and disrupting watch, audit, and recovery workflows

Kubernetes does not rely on etcd’s built-in authentication and authorization. Instead, the API server handles authentication and authorization itself, so typical Kubernetes deployments are not affected.

Patches

Has the problem been patched? What versions should users upgrade to?

These vulnerabilities are patched in the following versions:

  • etcd 3.6.9
  • etcd 3.5.28
  • etcd 3.4.42

Workarounds

Is there a way for users to fix or remediate the vulnerability without upgrading?

If upgrading is not immediately possible, reduce exposure by treating the affected RPCs as unauthenticated in practice.

  • restrict network access to etcd server ports so only trusted components can connect
  • require strong client identity at the transport layer, such as mTLS with tightly scoped client certificate distribution

Reporters

Community efforts help keep etcd secure

The etcd community thanks Isaac David, bugbunny.ai, Asim Viladi Oglu Manizada, Alex Schapiro & Ahmed Allam from Strix security, Luke Francis, and @OLU-DEVX for reporting these vulnerabilities.

Dependency Between Reported Issues

These issues all originate from the same underlying flaw in the gRPC API layer.

They affect the same API surface and share a common root cause. In practice, the fix is implemented as a single, unified change at the API layer, which resolves all issues together.

Given this, we believe these issues are best treated as a single vulnerability and should be assigned a single CVE.

Record
GHSA-q8m4-xhhv-38mg
CVSS 4.0
8.8 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
Weakness
CWE-862
Updated
2026-11-02
OSVRHSA-2026:28047 9.1

Red Hat Security Advisory: Red Hat OpenStack Platform 17.1 (etcd) security update

Record
RHSA-2026:28047
CVSS 3.1
9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Updated
2026-11-02
OSVRHSA-2026:54757 9.1

Red Hat Security Advisory: Red Hat OpenStack Platform 16.2 security advisory

Record
RHSA-2026:54757
CVSS 3.1
9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Updated
2026-11-02
OSVUBUNTU-CVE-2026-33413 8.8

etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.4.42, 3.5.28, and 3.6.9, unauthorized users may bypass authentication or authorization checks and call certain etcd functions in clusters that expose the gRPC API to untrusted or partially trusted clients. In unpatched etcd clusters with etcd auth enabled, unauthorized users are able to call MemberList and learn cluster topology, including member IDs and advertised endpoints; call Alarm, which can be abused for operational disruption or denial of service; use Lease APIs, interfering with TTL-based keys and lease ownership; and/or trigger compaction, permanently removing historical revisions and disrupting watch, audit, and recovery workflows. Kubernetes does not rely on etcd’s built-in authentication and authorization. Instead, the API server handles authentication and authorization itself, so typical Kubernetes deployments are not affected. Versions 3.4.42, 3.5.28, and 3.6.9 contain a patch. If upgrading is not immediately possible, reduce exposure by treating the affected RPCs as unauthenticated in practice. Restrict network access to etcd server ports so only trusted components can connect and/or require strong client identity at the transport layer, such as mTLS with tightly scoped client certificate distribution.

Record
UBUNTU-CVE-2026-33413
CVSS 4.0
8.8 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVAZL-80957 No score

CVE-2026-33413 affecting package etcd for versions less than 3.5.28-1

etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.4.42, 3.5.28, and 3.6.9, unauthorized users may bypass authentication or authorization checks and call certain etcd functions in clusters that expose the gRPC API to untrusted or partially trusted clients. In unpatched etcd clusters with etcd auth enabled, unauthorized users are able to call MemberList and learn cluster topology, including member IDs and advertised endpoints; call Alarm, which can be abused for operational disruption or denial of service; use Lease APIs, interfering with TTL-based keys and lease ownership; and/or trigger compaction, permanently removing historical revisions and disrupting watch, audit, and recovery workflows. Kubernetes does not rely on etcd’s built-in authentication and authorization. Instead, the API server handles authentication and authorization itself, so typical Kubernetes deployments are not affected. Versions 3.4.42, 3.5.28, and 3.6.9 contain a patch. If upgrading is not immediately possible, reduce exposure by treating the affected RPCs as unauthenticated in practice. Restrict network access to etcd server ports so only trusted components can connect and/or require strong client identity at the transport layer, such as mTLS with tightly scoped client certificate distribution.

Record
AZL-80957
Updated
2026-11-02
OSVBIT-etcd-2026-33413 No score

etcd: Authorization bypasses in multiple APIs

etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.4.42, 3.5.28, and 3.6.9, unauthorized users may bypass authentication or authorization checks and call certain etcd functions in clusters that expose the gRPC API to untrusted or partially trusted clients. In unpatched etcd clusters with etcd auth enabled, unauthorized users are able to call MemberList and learn cluster topology, including member IDs and advertised endpoints; call Alarm, which can be abused for operational disruption or denial of service; use Lease APIs, interfering with TTL-based keys and lease ownership; and/or trigger compaction, permanently removing historical revisions and disrupting watch, audit, and recovery workflows. Kubernetes does not rely on etcd’s built-in authentication and authorization. Instead, the API server handles authentication and authorization itself, so typical Kubernetes deployments are not affected. Versions 3.4.42, 3.5.28, and 3.6.9 contain a patch. If upgrading is not immediately possible, reduce exposure by treating the affected RPCs as unauthenticated in practice. Restrict network access to etcd server ports so only trusted components can connect and/or require strong client identity at the transport layer, such as mTLS with tightly scoped client certificate distribution.

Record
BIT-etcd-2026-33413
Updated
2026-11-02
OSVGO-2026-4806 No score

Authorization bypasses in multiple APIs in go.etcd.io/etcd

Authorization bypasses in multiple APIs in go.etcd.io/etcd

Record
GO-2026-4806
Updated
2026-11-02
OSVopenSUSE-SU-2026:10562-1 No score

flannel-0.28.4-1.1 on GA media

These are all security issues fixed in the flannel-0.28.4-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2026:10562-1
Updated
2026-11-02
OSVopenSUSE-SU-2026:21483-1 No score

Security update for govulncheck-vulndb

This update for govulncheck-vulndb fixes the following issues:

  • Update to version 0.0.20260723T184607 2026-07-23T18:46:07Z (jsc#PED-11136).

Go CVE Numbering Authority IDs added or updated with aliases:

  • GO-2026-4730 CVE-2026-33022 GHSA-cv4x-93xx-wgfj
  • GO-2026-4761 CVE-2026-33211 GHSA-j5q5-j9gm-2w5c
  • GO-2026-5102 CVE-2026-45021 GHSA-3vcp-chfh-f6r2
  • GO-2026-5272 CVE-2026-40938 GHSA-94jr-7pqp-xhcq
  • GO-2026-5486 CVE-2026-40924 GHSA-m2cx-gpqf-qf74
  • GO-2026-5542 CVE-2026-40090 GHSA-pj97-4p9w-gx3q
  • GO-2026-5630 CVE-2026-25542 GHSA-rmx9-2pp3-xhcr
  • GO-2026-5643 CVE-2026-40923 GHSA-rx35-6rhx-7858
  • GO-2026-5675 CVE-2026-41492 GHSA-vvf7-6rmr-m29q
  • GO-2026-5711 CVE-2026-40161 GHSA-wjxp-xrpv-xpff
  • GO-2026-5746 CVE-2026-41567 GHSA-x86f-5xw2-fm2r
  • GO-2026-5749 CVE-2026-41328 GHSA-x92x-px7w-4gx4
  • GO-2026-5837 CVE-2026-44840 GHSA-q2m9-6jp9-c6mc
  • GO-2026-5929 CVE-2026-44342 GHSA-26v7-h57m-gh9m
  • GO-2026-5930 CVE-2026-33655 GHSA-6qcr-qxgr-m7fv
  • GO-2026-5933 GHSA-3g4q-2f67-2gvh
  • GO-2026-5934 GHSA-59qp-cfj3-rp64
  • GO-2026-5935 GHSA-7856-g3gv-9wq8
  • GO-2026-5936 CVE-2026-53552 GHSA-26rh-24rg-j3vv
  • GO-2026-5937 CVE-2026-53508 GHSA-2jcc-mxv7-p3f9
  • GO-2026-5938 CVE-2026-53553 GHSA-4g5x-hcwm-82jw
  • GO-2026-5939 CVE-2026-10517 GHSA-698x-9w2p-7vvp
  • GO-2026-5940 CVE-2026-53572 GHSA-6w3m-4hhp-775q
  • GO-2026-5941 CVE-2026-53487 GHSA-gvhc-wv3v-7pf8
  • GO-2026-5942 CVE-2026-46600
  • GO-2026-5944 CVE-2026-50197 GHSA-659f-rgp5-w4wf
  • GO-2026-5945 CVE-2026-6815 GHSA-rmxx-v9rj-vpvg
  • GO-2026-5946 CVE-2026-52831 GHSA-v5px-423j-pf7p
  • GO-2026-5947 CVE-2026-53649 GHSA-xqhv-chqm-fhcc
  • GO-2026-5948 CVE-2026-50554 GHSA-588f-fvcv-xhvf
  • GO-2026-5949 CVE-2026-50553 GHSA-rqrh-8wpv-x7hh
  • GO-2026-5950 CVE-2026-53602 GHSA-339v-266x-79xr
  • GO-2026-5951 CVE-2026-10219 GHSA-6jm8-4fhr-5w64
  • GO-2026-5952 CVE-2026-49834 GHSA-9vcr-p3rj-q5q6
  • GO-2026-5953 CVE-2026-9094 GHSA-c9w5-qp6m-m395
  • GO-2026-5956 CVE-2026-55252 GHSA-h5g6-xmh4-hc37
  • GO-2026-5957 CVE-2026-54158 GHSA-5xfx-xj4h-5p7r
  • GO-2026-5958 CVE-2026-54068 GHSA-gcm7-57gf-953c
  • GO-2026-5959 CVE-2026-54072 GHSA-h29v-hj44-q8cv
  • GO-2026-5961 CVE-2026-54069 GHSA-hvr9-72v2-fff3
  • GO-2026-5962 CVE-2026-54088 GHSA-m93h-4hw7-5qcm
  • GO-2026-5963 CVE-2026-54067 GHSA-mvjr-vv3c-w4qv
  • GO-2026-5964 CVE-2026-54066 GHSA-p4m3-mgmm-c664
  • GO-2026-5965 CVE-2026-54070 GHSA-w7cg-whh7-xp28
  • GO-2026-5966 CVE-2026-54089 GHSA-xqp3-jq6g-x3qm
  • GO-2026-5967 CVE-2026-50551 GHSA-56mp-4f3v-fgj2
  • GO-2026-5968 CVE-2026-54174 GHSA-fpg8-7664-jc5q
  • GO-2026-5969 GHSA-g936-7jqj-mwv8
  • GO-2026-5970 CVE-2026-56852
  • GO-2026-5973 CVE-2026-54250 GHSA-jxr7-mqhw-9p98
  • GO-2026-5974 CVE-2026-44300 GHSA-wmj8-9953-vff5
  • GO-2026-5975 CVE-2026-50018 GHSA-42j2-w334-qxw7
  • GO-2026-5976 CVE-2026-50141 GHSA-g7mm-9vx7-jm7h
  • GO-2026-5977 CVE-2026-50013 GHSA-qrh4-p6v4-mrfg
  • GO-2026-5978 CVE-2026-50125 GHSA-qw5r-ppcg-f8rj
  • GO-2026-5979 CVE-2026-50006 GHSA-xrcf-6jh3-ggvx
  • GO-2026-5980 CVE-2026-50158 GHSA-2c7f-fxww-6w6c
  • GO-2026-5981 GHSA-mqxv-9rm6-w8qc
  • GO-2026-5982 GHSA-pqg7-v6wh-3pfp
  • GO-2026-5984 CVE-2026-53604 GHSA-2p2f-px33-4vv5
  • GO-2026-5985 GHSA-7rx3-5wx3-5v76
  • GO-2026-5986 CVE-2026-61699 GHSA-cm26-5974-52h8
  • GO-2026-5987 CVE-2026-55513 GHSA-g4x6-jcvr-9m3g
  • GO-2026-5988 CVE-2026-54628 GHSA-hwrq-8wxh-q4xv
  • GO-2026-5989 CVE-2026-55512 GHSA-m3cx-mwpg-32jg
  • GO-2026-5990 CVE-2026-54629 GHSA-mf78-3rpf-r784
  • GO-2026-5991 CVE-2026-53603 GHSA-q4vm-pq3q-8wgq
  • GO-2026-5992 CVE-2026-61549 GHSA-qf34-295c-26v8
  • GO-2026-5996 CVE-2026-54450 GHSA-pph6-vfjv-vpjw
  • GO-2026-5997 CVE-2026-54452 GHSA-xgch-x3mx-cm3c
  • GO-2026-5998 CVE-2026-54495 GHSA-398h-7f66-3h4p
  • GO-2026-5999 CVE-2026-10814 GHSA-jh6h-v6mp-h22v
  • GO-2026-6002 CVE-2026-58196 GHSA-pr64-jmmf-jp54
  • GO-2026-6003 CVE-2026-53714 GHSA-22xc-xg2r-9j7v
  • GO-2026-6004 CVE-2026-52833 GHSA-3v79-m2cg-89ww
  • GO-2026-6005 CVE-2026-53715 GHSA-8fv2-88gg-hm7q
  • GO-2026-6006 CVE-2026-53716 GHSA-cxpq-8v7q-cg56 *…
Record
openSUSE-SU-2026:21483-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
go.etcd.io/etcd/v3
Go
 3.6.0-alpha.0 to 3.6.8
3.6.9
go.etcd.io/etcd/v3
Go
 3.5.0-alpha.0 to 3.5.27
3.5.28
go.etcd.io/etcd/v3
Go
 through 3.4.41
3.4.42
go.etcd.io/etcd
Go
 through 3.3.27 None known
etcd
Alpine:v3.23
 3.5.0 up to 3.6.10-r0
3.6.10-r0
etcd
Alpine:v3.24
 3.5.0 up to 3.6.10-r0
3.6.10-r0
etcd
Azure Linux:3
 before 3.5.28-1
3.5.28-1
etcd
Bitnami
 before 3.4.42, 3.5.0 up to 3.5.28, 3.6.0 up to 3.6.9
3.4.423.5.283.6.9
etcd
Debian:12
 All versions, plus listed versions
3.4.23-43.4.23-53.4.23-63.4.30-13.4.30-2
Show 25 moreShow less
3.4.30-33.5.15-13.5.15-23.5.15-33.5.15-43.5.15-53.5.15-63.5.15-73.5.16-13.5.16-103.5.16-113.5.16-23.5.16-33.5.16-43.5.16-53.5.16-63.5.16-73.5.16-83.5.16-93.5.22-13.5.22-23.5.30-1~exp13.5.30-1~exp23.5.30-23.5.5-1
 None known
etcd
Debian:13
 All versions, plus listed versions
3.5.16-103.5.16-113.5.16-43.5.16-53.5.16-6
Show 8 moreShow less
3.5.16-73.5.16-83.5.16-93.5.22-13.5.22-23.5.30-1~exp13.5.30-1~exp23.5.30-2
 None known
Show 76 moreShow less
Affected packages
PackageAffectedFixed
etcd
Debian:14
 before 3.5.16-11, plus listed versions
3.5.16-103.5.16-43.5.16-53.5.16-63.5.16-73.5.16-83.5.16-9
3.5.16-11
go.etcd.io/etcd/v3
Go
 3.6.0-alpha.0 up to 3.6.9
3.6.9
go.etcd.io/etcd/v3
Go
 3.5.0-alpha.0 up to 3.5.28
3.5.28
go.etcd.io/etcd/v3
Go
 before 3.4.42
3.4.42
go.etcd.io/etcd
Go
 All versions None known
go.etcd.io/etcd/v3
Go
 before 3.4.42, 3.5.0-alpha.0 up to 3.5.28, 3.6.0-alpha.0 up to 3.6.9
3.4.423.5.283.6.9
etcd
Red Hat:openstack:17.1::el9
From an advisory covering 11 CVEs
 before 0:3.4.26-9.5.el9ost
0:3.4.26-9.5.el9ost
etcd-debuginfo
Red Hat:openstack:17.1::el9
From an advisory covering 11 CVEs
 before 0:3.4.26-9.5.el9ost
0:3.4.26-9.5.el9ost
etcd-debugsource
Red Hat:openstack:17.1::el9
From an advisory covering 11 CVEs
 before 0:3.4.26-9.5.el9ost
0:3.4.26-9.5.el9ost
collectd-sensubility
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:0.2.1-1.1.el8ost
0:0.2.1-1.1.el8ost
collectd-sensubility-debuginfo
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:0.2.1-1.1.el8ost
0:0.2.1-1.1.el8ost
etcd
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:3.3.23-22.el8ost
0:3.3.23-22.el8ost
etcd-debuginfo
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:3.3.23-22.el8ost
0:3.3.23-22.el8ost
etcd-debugsource
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:3.3.23-22.el8ost
0:3.3.23-22.el8ost
openstack-keystone
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 1:16.0.3-2.20260616134936.9d699a7.el8ost
1:16.0.3-2.20260616134936.9d699a7.el8ost
python3-keystone
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 1:16.0.3-2.20260616134936.9d699a7.el8ost
1:16.0.3-2.20260616134936.9d699a7.el8ost
python-pyasn1
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:0.4.6-4.el8ost
0:0.4.6-4.el8ost
python3-pyasn1
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:0.4.6-4.el8ost
0:0.4.6-4.el8ost
python3-pyasn1-modules
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:0.4.6-4.el8ost
0:0.4.6-4.el8ost
openstack-nova
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 1:20.6.2-2.20260317135026.8a24acd.el8ost
1:20.6.2-2.20260317135026.8a24acd.el8ost
openstack-nova-api
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 1:20.6.2-2.20260317135026.8a24acd.el8ost
1:20.6.2-2.20260317135026.8a24acd.el8ost
openstack-nova-common
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 1:20.6.2-2.20260317135026.8a24acd.el8ost
1:20.6.2-2.20260317135026.8a24acd.el8ost
openstack-nova-compute
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 1:20.6.2-2.20260317135026.8a24acd.el8ost
1:20.6.2-2.20260317135026.8a24acd.el8ost
openstack-nova-conductor
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 1:20.6.2-2.20260317135026.8a24acd.el8ost
1:20.6.2-2.20260317135026.8a24acd.el8ost
openstack-nova-console
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 1:20.6.2-2.20260317135026.8a24acd.el8ost
1:20.6.2-2.20260317135026.8a24acd.el8ost
openstack-nova-migration
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 1:20.6.2-2.20260317135026.8a24acd.el8ost
1:20.6.2-2.20260317135026.8a24acd.el8ost
openstack-nova-novncproxy
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 1:20.6.2-2.20260317135026.8a24acd.el8ost
1:20.6.2-2.20260317135026.8a24acd.el8ost
openstack-nova-scheduler
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 1:20.6.2-2.20260317135026.8a24acd.el8ost
1:20.6.2-2.20260317135026.8a24acd.el8ost
openstack-nova-serialproxy
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 1:20.6.2-2.20260317135026.8a24acd.el8ost
1:20.6.2-2.20260317135026.8a24acd.el8ost
openstack-nova-spicehtml5proxy
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 1:20.6.2-2.20260317135026.8a24acd.el8ost
1:20.6.2-2.20260317135026.8a24acd.el8ost
python3-nova
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 1:20.6.2-2.20260317135026.8a24acd.el8ost
1:20.6.2-2.20260317135026.8a24acd.el8ost
openstack-glance
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 1:19.0.5-2.20260512165254.eb6ad61.el8ost
1:19.0.5-2.20260512165254.eb6ad61.el8ost
python3-glance
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 1:19.0.5-2.20260512165254.eb6ad61.el8ost
1:19.0.5-2.20260512165254.eb6ad61.el8ost
erlang
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:23.3.4.18-2.el8ost
0:23.3.4.18-2.el8ost
erlang-asn1
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:23.3.4.18-2.el8ost
0:23.3.4.18-2.el8ost
erlang-asn1-debuginfo
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:23.3.4.18-2.el8ost
0:23.3.4.18-2.el8ost
erlang-compiler
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:23.3.4.18-2.el8ost
0:23.3.4.18-2.el8ost
erlang-crypto
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:23.3.4.18-2.el8ost
0:23.3.4.18-2.el8ost
erlang-crypto-debuginfo
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:23.3.4.18-2.el8ost
0:23.3.4.18-2.el8ost
erlang-debuginfo
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:23.3.4.18-2.el8ost
0:23.3.4.18-2.el8ost
erlang-debugsource
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:23.3.4.18-2.el8ost
0:23.3.4.18-2.el8ost
erlang-eldap
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:23.3.4.18-2.el8ost
0:23.3.4.18-2.el8ost
erlang-erl_interface-debuginfo
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:23.3.4.18-2.el8ost
0:23.3.4.18-2.el8ost
erlang-erts
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:23.3.4.18-2.el8ost
0:23.3.4.18-2.el8ost
erlang-erts-debuginfo
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:23.3.4.18-2.el8ost
0:23.3.4.18-2.el8ost
erlang-hipe
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:23.3.4.18-2.el8ost
0:23.3.4.18-2.el8ost
erlang-inets
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:23.3.4.18-2.el8ost
0:23.3.4.18-2.el8ost
erlang-kernel
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:23.3.4.18-2.el8ost
0:23.3.4.18-2.el8ost
erlang-mnesia
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:23.3.4.18-2.el8ost
0:23.3.4.18-2.el8ost
erlang-odbc-debuginfo
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:23.3.4.18-2.el8ost
0:23.3.4.18-2.el8ost
erlang-os_mon
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:23.3.4.18-2.el8ost
0:23.3.4.18-2.el8ost
erlang-os_mon-debuginfo
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:23.3.4.18-2.el8ost
0:23.3.4.18-2.el8ost
erlang-parsetools
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:23.3.4.18-2.el8ost
0:23.3.4.18-2.el8ost
erlang-public_key
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:23.3.4.18-2.el8ost
0:23.3.4.18-2.el8ost
erlang-runtime_tools
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:23.3.4.18-2.el8ost
0:23.3.4.18-2.el8ost
erlang-runtime_tools-debuginfo
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:23.3.4.18-2.el8ost
0:23.3.4.18-2.el8ost
erlang-sasl
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:23.3.4.18-2.el8ost
0:23.3.4.18-2.el8ost
erlang-snmp
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:23.3.4.18-2.el8ost
0:23.3.4.18-2.el8ost
erlang-ssl
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:23.3.4.18-2.el8ost
0:23.3.4.18-2.el8ost
erlang-stdlib
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:23.3.4.18-2.el8ost
0:23.3.4.18-2.el8ost
erlang-syntax_tools
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:23.3.4.18-2.el8ost
0:23.3.4.18-2.el8ost
erlang-tools
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:23.3.4.18-2.el8ost
0:23.3.4.18-2.el8ost
erlang-tools-debuginfo
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:23.3.4.18-2.el8ost
0:23.3.4.18-2.el8ost
erlang-xmerl
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:23.3.4.18-2.el8ost
0:23.3.4.18-2.el8ost
python-oslo-messaging
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:10.2.4-2.20260710155333.82281a0.el8ost
0:10.2.4-2.20260710155333.82281a0.el8ost
python3-oslo-messaging
Red Hat:openstack:16.2::el8
From an advisory covering 24 CVEs
 before 0:10.2.4-2.20260710155333.82281a0.el8ost
0:10.2.4-2.20260710155333.82281a0.el8ost
etcd
Ubuntu:16.04:LTS
 All versions, plus listed versions
2.2.0+dfsg-22.2.1+dfsg-12.2.2+dfsg-12.2.2+dfsg-22.2.3+dfsg-12.2.5+dfsg-12.2.5+dfsg-1ubuntu1
 None known
etcd
Ubuntu:Pro:18.04:LTS
 All versions, plus listed versions
3.1.0-13.2.9+dfsg-23.2.9+dfsg-33.2.17+dfsg-13.2.17+dfsg-1ubuntu0.1~esm13.2.17+dfsg-1ubuntu0.13.2.17+dfsg-1ubuntu0.1+esm13.2.17+dfsg-1ubuntu0.1+esm2
 None known
etcd
Ubuntu:Pro:20.04:LTS
 All versions, plus listed versions
3.2.26+dfsg-33.2.26+dfsg-43.2.26+dfsg-63.2.26+dfsg-6ubuntu0.13.2.26+dfsg-6ubuntu0.23.2.26+dfsg-6ubuntu0.2+esm1
 None known
etcd
Ubuntu:Pro:22.04:LTS
 All versions, plus listed versions
3.3.25+dfsg-63.3.25+dfsg-73.3.25+dfsg-7ubuntu0.22.04.13.3.25+dfsg-7ubuntu0.22.04.1+esm13.3.25+dfsg-7ubuntu0.22.04.23.3.25+dfsg-7ubuntu0.22.04.2+esm13.3.25+dfsg-7ubuntu0.22.04.2+esm23.3.25+dfsg-7ubuntu0.22.04.2+esm3
 None known
etcd
Ubuntu:Pro:24.04:LTS
 All versions, plus listed versions
3.4.23-4ubuntu23.4.30-13.4.30-1build13.4.30-1ubuntu0.24.04.13.4.30-1ubuntu0.24.04.2
Show 4 moreShow less
3.4.30-1ubuntu0.24.04.2+esm13.4.30-1ubuntu0.24.04.33.4.30-1ubuntu0.24.04.3+esm13.4.30-1ubuntu0.24.04.3+esm2
 None known
etcd
Ubuntu:25.10
 All versions, plus listed versions
3.5.16-4
 None known
etcd
Ubuntu:26.10
 All versions, plus listed versions
3.5.16-103.5.30-2
 None known
etcd
Ubuntu:Pro:26.04:LTS
 All versions, plus listed versions
3.5.16-43.5.16-103.5.16-10ubuntu0.26.04.1~esm1
 None known
flannel
openSUSE:Tumbleweed
 before 0.28.4-1.1
0.28.4-1.1
govulncheck-vulndb
openSUSE:Leap 16.0
From an advisory covering 1734 CVEs
 before 0.0.20260723T184607-160000.1.1
0.0.20260723T184607-160000.1.1

History

History
RecordedChangedSources
affected, facts
affected, aliases, referencesOSV
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-33413 is a high vulnerability (CVSS 8.8) in Etcd, published March 20, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.26%, the 17th percentile. Fixed in go.etcd.io/etcd/v3 3.6.9.

References

Show 194 moreShow less
This page doesn't list everything

Left out here: 1,716 references and the rest of 1 source description. The JSON record has them.

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