CVE-2026-88041

Tomcat is the servlet container that is used in the official Reference Implementation for the Java Servlet and JavaServer Pages technologies. The Java Servlet and JavaServer Pages specifications are developed by Sun under the Java Community Process.

Security Fix(es):

A missing critical step in authentication vulnerability in Apache Tomcat when the JNDI realm was configured with with a non GSSAPI SASL authentication mechanism allowed attackers to authenticate without providing the correct password.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.26, from 10.1.0-M1 through 10.1.60, from 9.0.0.M1 through 9.0.122.

The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other unsupported versions may also be affected.

Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fix the issue.(CVE-2026-101296)

Incorrect object recycling and re-use vulnerability in Apache Tomcat affecting HTTP/2 processing of asynchronous servlets can trigger request and/or response mix-up between users.

This issue affects Apache Tomcat: from 11.0.22 through 11.0.26, from 10.1.55 through 10.1.60, from 9.0.118 through 9.0.122.

Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fixes the issue.(CVE-2026-101356)

Not Failing Securely ('Failing Open') vulnerability in Apache Tomcat. If the OpenSSLLifecycleListener is configured to use FIPS mode but FIPS activation fails, Tomcat logs and error but continues to use JSSE in non-FIPS mode with the provided configuration.

This issue affects Apache Tomcat: from 11.0.0-M14 through 11.0.26, from 10.1.22 through 10.1.60, from 9.0.92 through 9.0.122.

Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fix the issue.(CVE-2026-74048)

Execution After Redirect (EAR) vulnerability in Apache Tomcat.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.26, from 10.1.0-M1 through 10.1.60, from 9.0.0.M1 through 9.0.122.

The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other unsupported versions may also be affected.

Users are recommended to upgrade to version 11.0.27, 10.1.61, 9.0.123, which fixes the issue.(CVE-2026-74049)

Time-of-check time-of-use (TOCTOU) race condition vulnerability in Apache Tomcat when creating unix domain sockets for the APR/Native connector allows an unauthorised local user to access the unix domain socket. The fix for CVE-2026-65183 only addressed the NIO connector. It did not address the same issue in the APR/Native connector.

This issue affects Apache Tomcat: from 9.0.47 through 9.0.122.

Users are recommended to upgrade to version 9.0.123, which fixes the issue.(CVE-2026-80353)

Incomplete cleanup vulnerability in Apache Tomcat allowed an trailer information from a previous request to leak into a subsequent request.

This issue affects Apache Tomcat: from 11.0.0-M23 through 11.0.26, from 10.1.27 through 10.1.60, from 9.0.92 through 9.0.122.

Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fix the issue.(CVE-2026-88041)

Incomplete cleanup vulnerability in Apache Tomcat could cause TLS 1.3 connections to fail intermittently.

This issue affects Apache Tomcat: from 11.0.0-M21 through 11.0.26, from 10.1.25 through 10.1.60, from 9.0.90 through 9.0.122.

Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fix the issue.(CVE-2026-93446)

Tomcat is the servlet container that is used in the official Reference Implementation for the Java Servlet and JavaServer Pages technologies. The Java Servlet and JavaServer Pages specifications are developed by Sun under the Java Community Process.

Security Fix(es):

A missing critical step in authentication vulnerability in Apache Tomcat when the JNDI realm was configured with with a non GSSAPI SASL authentication mechanism allowed attackers to authenticate without providing the correct password.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.26, from 10.1.0-M1 through 10.1.60, from 9.0.0.M1 through 9.0.122.

The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other unsupported versions may also be affected.

Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fix the issue.(CVE-2026-101296)

Incorrect object recycling and re-use vulnerability in Apache Tomcat affecting HTTP/2 processing of asynchronous servlets can trigger request and/or response mix-up between users.

This issue affects Apache Tomcat: from 11.0.22 through 11.0.26, from 10.1.55 through 10.1.60, from 9.0.118 through 9.0.122.

Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fixes the issue.(CVE-2026-101356)

Not Failing Securely ('Failing Open') vulnerability in Apache Tomcat. If the OpenSSLLifecycleListener is configured to use FIPS mode but FIPS activation fails, Tomcat logs and error but continues to use JSSE in non-FIPS mode with the provided configuration.

This issue affects Apache Tomcat: from 11.0.0-M14 through 11.0.26, from 10.1.22 through 10.1.60, from 9.0.92 through 9.0.122.

Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fix the issue.(CVE-2026-74048)

Execution After Redirect (EAR) vulnerability in Apache Tomcat.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.26, from 10.1.0-M1 through 10.1.60, from 9.0.0.M1 through 9.0.122.

The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other unsupported versions may also be affected.

Users are recommended to upgrade to version 11.0.27, 10.1.61, 9.0.123, which fixes the issue.(CVE-2026-74049)

Time-of-check time-of-use (TOCTOU) race condition vulnerability in Apache Tomcat when creating unix domain sockets for the APR/Native connector allows an unauthorised local user to access the unix domain socket. The fix for CVE-2026-65183 only addressed the NIO connector. It did not address the same issue in the APR/Native connector.

This issue affects Apache Tomcat: from 9.0.47 through 9.0.122.

Users are recommended to upgrade to version 9.0.123, which fixes the issue.(CVE-2026-80353)

Incomplete cleanup vulnerability in Apache Tomcat allowed an trailer information from a previous request to leak into a subsequent request.

This issue affects Apache Tomcat: from 11.0.0-M23 through 11.0.26, from 10.1.27 through 10.1.60, from 9.0.92 through 9.0.122.

Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fix the issue.(CVE-2026-88041)

Incomplete cleanup vulnerability in Apache Tomcat could cause TLS 1.3 connections to fail intermittently.

This issue affects Apache Tomcat: from 11.0.0-M21 through 11.0.26, from 10.1.25 through 10.1.60, from 9.0.90 through 9.0.122.

Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fix the issue.(CVE-2026-93446)

Tomcat is the servlet container that is used in the official Reference Implementation for the Java Servlet and JavaServer Pages technologies. The Java Servlet and JavaServer Pages specifications are developed by Sun under the Java Community Process.

Security Fix(es):

A missing critical step in authentication vulnerability in Apache Tomcat when the JNDI realm was configured with with a non GSSAPI SASL authentication mechanism allowed attackers to authenticate without providing the correct password.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.26, from 10.1.0-M1 through 10.1.60, from 9.0.0.M1 through 9.0.122.

The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other unsupported versions may also be affected.

Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fix the issue.(CVE-2026-101296)

Incorrect object recycling and re-use vulnerability in Apache Tomcat affecting HTTP/2 processing of asynchronous servlets can trigger request and/or response mix-up between users.

This issue affects Apache Tomcat: from 11.0.22 through 11.0.26, from 10.1.55 through 10.1.60, from 9.0.118 through 9.0.122.

Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fixes the issue.(CVE-2026-101356)

Not Failing Securely ('Failing Open') vulnerability in Apache Tomcat. If the OpenSSLLifecycleListener is configured to use FIPS mode but FIPS activation fails, Tomcat logs and error but continues to use JSSE in non-FIPS mode with the provided configuration.

This issue affects Apache Tomcat: from 11.0.0-M14 through 11.0.26, from 10.1.22 through 10.1.60, from 9.0.92 through 9.0.122.

Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fix the issue.(CVE-2026-74048)

Execution After Redirect (EAR) vulnerability in Apache Tomcat.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.26, from 10.1.0-M1 through 10.1.60, from 9.0.0.M1 through 9.0.122.

The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other unsupported versions may also be affected.

Users are recommended to upgrade to version 11.0.27, 10.1.61, 9.0.123, which fixes the issue.(CVE-2026-74049)

Time-of-check time-of-use (TOCTOU) race condition vulnerability in Apache Tomcat when creating unix domain sockets for the APR/Native connector allows an unauthorised local user to access the unix domain socket. The fix for CVE-2026-65183 only addressed the NIO connector. It did not address the same issue in the APR/Native connector.

This issue affects Apache Tomcat: from 9.0.47 through 9.0.122.

Users are recommended to upgrade to version 9.0.123, which fixes the issue.(CVE-2026-80353)

Incomplete cleanup vulnerability in Apache Tomcat allowed an trailer information from a previous request to leak into a subsequent request.

This issue affects Apache Tomcat: from 11.0.0-M23 through 11.0.26, from 10.1.27 through 10.1.60, from 9.0.92 through 9.0.122.

Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fix the issue.(CVE-2026-88041)

Incomplete cleanup vulnerability in Apache Tomcat could cause TLS 1.3 connections to fail intermittently.

This issue affects Apache Tomcat: from 11.0.0-M21 through 11.0.26, from 10.1.25 through 10.1.60, from 9.0.90 through 9.0.122.

Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fix the issue.(CVE-2026-93446)

Incomplete cleanup vulnerability in Apache Tomcat allowed an trailer information from a previous request to leak into a subsequent request. This issue affects Apache Tomcat: from 11.0.0-M23 through 11.0.26, from 10.1.27 through 10.1.60, from 9.0.92 through 9.0.122. Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fix the issue.

Incomplete cleanup vulnerability in Apache Tomcat allowed an trailer information from a previous request to leak into a subsequent request.

This issue affects Apache Tomcat: from 11.0.0 through 11.0.26, from 10.1.27 through 10.1.60, from 9.0.92 through 9.0.122.

Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fix the issue.

OpenSSL-FFM FIPS failure does not prevent start-up. (CVE-2026-74048) Jasper JSTL plug-in implementation omits page abort (SKIP_PAGE). (CVE-2026-74049) TOCTOU when setting specific permissions for Unix Domain Sockets - Fix for CVE-2026-65183 did not address APR connector. (CVE-2026-80353) HTTP/2 trailer header cross-contamination. (CVE-2026-88041) Possible TLS 1.3 connection failures. (CVE-2026-93446) JNDIRealm bind credential validation fails open for non-GSSAPI SASL mechanisms. (CVE-2026-101296) HTTP/2 request/response mix-up after error during async processing. (CVE-2026-101356)

These are all security issues fixed in the tomcat-9.0.123-1.1 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the tomcat10-10.1.61-1.1 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the tomcat11-11.0.27-1.1 package on the GA media of openSUSE Tumbleweed.

This update for libapr1, libtcnative-1-0, tomcat fixes the following issues:

• CVE-2026-73581: OpenSSL and OpenSSL-FFM TLS implementations ignore CRLs when certificate uses a keystore (bsc#1282631).
• CVE-2026-74048: Cryptographic policy bypass via FIPS activation failure (bsc#1286502).
• CVE-2026-74049: Jasper JSTL <c:redirect> plug-in implementation omits page abort (bsc#1286555).
• CVE-2026-75973: improper authentication when Jakarta authentication is configured with SimpleAuthConfigProvider (bsc#1282630).
• CVE-2026-76183: security constraints for any WebSocket endpoint can be bypassed (bsc#1282629).
• CVE-2026-77756: inconsistent interpretation of HTTP requests allows an attacker to cause one request from another user to fail when Tomcat is located behind a reverse proxy (bsc#1282628).
• CVE-2026-77762: stale HPACK emitter injects trailers fields into another HTTP/2 request (bsc#1282599).
• CVE-2026-77791: uncontrolled resource consumption when sending WebSocket close message enabled a DoS attack (bsc#1282627).
• CVE-2026-78383: allocation of resources without limits or throttling allows an unauthenticated AJP request to pin an AJP processing thread leading to denial of service (bsc#1282626).
• CVE-2026-78437: incomplete cleanup allows a malformed request to potentially cause requests from another user to fail (bsc#1282625).
• CVE-2026-79677: missing release of resource after effective lifetime and comparison using wrong factors allows for denial of service due to lost time outs for asynchronous WebSocket writes (bsc#1282624).
• CVE-2026-80353: TOCTOU when creating unix domain sockets for the APR/Native connector allows an unauthorized local user to access the unix domain socket (bsc#1286902).
• CVE-2026-86243: buffer overread during the TLS handshake permits a malicious user to trigger a DoS via a JVM crash (bsc#1282623).
• CVE-2026-86246: insecure ALLOW_CLIENT_RENEGOTIATION, NO_EXTENDED_MASTER_SECRET, IGNORE_UNEXPECTED_EOF and ALLOW_NO_DHE_KEX options enabled by default (bsc#1282622).
• CVE-2026-86247: race condition allows client certificate verification requirements to be down-graded for some configurations (bsc#1282621).
• CVE-2026-86248: CLIENT_CERT authentication does not fail as expected for some scenarios when soft fail is disabled (bsc#1282620).
• CVE-2026-86350: HTTP/2 requests can cause request header mix-ups and HTTP request smuggling (bsc#1282787).
• CVE-2026-87022: WebSocket message smuggling when per-message-deflate is used (bsc#1282581).
• CVE-2026-88041: Information disclosure via incomplete HTTP trailer cleanup (bsc#1286559).
• CVE-2026-93446: Possible TLS 1.3 connection failures (bsc#1286571).
• CVE-2026-101296: Authentication bypass via non-GSSAPI SASL in JNDI realm (bsc#1286361).
• CVE-2026-101356: Information disclosure via incorrect object recycling in HTTP/2 processing (bsc#1286362).

Non security issue fixed:

• Tomcat TLS Broken - Tomcat 9.0.14 update incompatible with tomcat-native (bsc#1130843).

Changes for libapr1:

Update to 1.6.5:

• Fix Win32 build breakage in apr_os_exp_time_put() in 1.6.4
• Fix apr_parse_addr_port() regression in scope_id parsing introduced in 1.6.3
• Numerous corrections to APR poll behavior
• apr_file_trunc: Truncating a buffered file could add unexpected data after the truncate position
• apr_file_trunc: Fix an issue where reading from a buffered file after truncate could return stale data from the buffer
• apr_ipsubnet_create() now fails for an empty input string
• Fix CVE-2017-12613, out-of-bounds read in apr_time_exp*()
• Export build files find_apr.m4 and apr_common.m4
• apr_proc_mutex-pthread: Refcount shared mutexes usage to avoid destruction while still in use by some process(es)
• New APIs: apr_allocator_align(), apr_os_proc_mutex_put_ex(), apr_os_proc_mutex_get_ex(), apr_os_proc_mutex_set_ex(), apr_file_pipe_create_pools(), apr_pollcb_wakeup(), apr_pollcb_method_name(), apr_cstr_(), apr_skiplist_addne(), …

This update for tomcat10 fixes the following issues:

• CVE-2026-74048: Cryptographic policy bypass via FIPS activation failure (bsc#1286502).
• CVE-2026-74049: Jasper JSTL <c:redirect> plug-in implementation omits page abort (bsc#1286555).
• CVE-2026-88041: Information disclosure via incomplete HTTP trailer cleanup (bsc#1286559).
• CVE-2026-93446: Possible TLS 1.3 connection failures (bsc#1286571).
• CVE-2026-101296: Authentication bypass via non-GSSAPI SASL in JNDI realm (bsc#1286361).
• CVE-2026-101356: Information disclosure via incorrect object recycling in HTTP/2 processing (bsc#1286362).

Changes:

Update to Tomcat 10.1.61:

• Catalina

• Fix: When starting a web application, don't try and use the web application class loader until after the web application class loader has started. (markt)
• Fix: various concurrency issues around adding and removing Realms from a CombinedRealm, in particular doing so while the CombinedRealm is in use. Note that once a Realm instance has been removed from a CombinedRealm instance at run-time, the removed Realm instance may not be reused apart from re-adding it to the same CombinedRealm. (markt)
• Update: When StoreConfig re-writes an existing server.xml or context configuration file, preserve the layout of the existing file (comments, blank lines and attribute order) on a best effort basis. (remm)
• Fix: Track in StandardContext whether the context was deployed from a Context element in server.xml. Use it to have StoreConfig save to a new config file. (remm)
• Fix: Improve error handling on start-up. (markt)
• Fix: byte range responses generated by DefaultServlet so a short resource stream read does not truncate the response. Treat a premature end of stream as an I/O error. Based on pull request #1067 by aoto-tech. (markt)
• Fix: Align OpenSSLLifecycleListener with AprLifecycleListener and throw an Error when FIPS is requested but not available. (markt)
• Fix: Ensure that, as per the documentation, a simple bind is always used when the JNDI realm binds using the user provided name and password to authenticate the user. (markt)
• Update: Optimize Accept-Language header processing and use of resource budles for localization. (remm)

• Coyote

• Fix: 70236: Fix a stalled TLS handshake with the OpenSSL based implementations of SSLEngine when the first flight of handshake messages sent by the server is too large to fit in the buffer used by the BIO pair. Patch submitted by Lukas Hellebrandt. (remm)
• Fix: #1073: Fix possible corruption when using HTTP/2 and async IO on uploads. Submitted by Tim Burke. (remm)
• Fix: Avoid very rare race between async write notification and completion. Skip the write notification in these cases since it would be useless. (remm)
• Fix: a timing issue that could cause large non-blocking writes to stall for AJP connections. (markt)
• Fix: Ensure that the non-blocking write buffer is empty before sending an AJP end response message. (markt)
• Fix: CharChunk.indexOf(char) so that it searches from the start of the chunk rather than from twice the chunk's start offset when the chunk does not begin at the start of its buffer. (breken-ai)
• Fix: 70247: Fix a leak in the HTTP/2 connection flow control window when part of the HTTP request body is received but not read. Based on a patch provided by Guillaume Darmont. (markt)
• Fix: 70251: Avoid closing a JarFile in CloseableURLConnection unless it is certain the JAR is not shared. (remm)
• Fix: possible corruption of HTTP/1.1 chunked response bodies if a previous write to a chunked body fails. (markt)
• Fix: Align cipher order with the results produced by OpenSSL if the cipher specification adds, removes and then re-adds ciphers. (markt)
• Fix: Correct a narrow race condition when processing HTTP/2 headers.
• Fix: possible TLS connections failures caused by one of the flags Tomcat uses to track TLS handshake progress not being correctly reset. (markt)
• Fix: Allow for…