SUSE-SU-2026:3430-1: important: Security update for tomcat11

Thu Jul 30 16:30:36 UTC 2026

# Security update for tomcat11

Announcement ID: SUSE-SU-2026:3430-1  
Release Date: 2026-07-30T11:20:51Z  
Rating: important  
References:

  * bsc#1271397
  * bsc#1271398

Cross-References:

  * CVE-2026-59083
  * CVE-2026-59084

CVSS scores:

  * CVE-2026-59083 ( SUSE ):  8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
  * CVE-2026-59083 ( NVD ):  9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-59084 ( SUSE ):  7.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
  * CVE-2026-59084 ( NVD ):  9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected Products:

  * openSUSE Leap 15.6
  * SUSE Linux Enterprise Server 15 SP6
  * SUSE Linux Enterprise Server 15 SP6 LTSS
  * SUSE Linux Enterprise Server 15 SP7
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6
  * SUSE Linux Enterprise Server for SAP Applications 15 SP7
  * Web and Scripting Module 15-SP7

An update that solves two vulnerabilities can now be installed.

## Description:

This update for tomcat11 fixes the following issues:

Update to Tomcat 11.0.24.

Security issues fixed:

  * CVE-2026-59083: incorrect URL decoding in `RewriteValve` may allow security
    control bypass (bsc#1271397).
  * CVE-2026-59084: `EncryptInterceptor` requirements are not clearly documented
    (bsc#1271398).

Other updates and bugfixes:

  * Tomcat 11.0.24:
  * Catalina
    * Fix: Avoid a race condition with concurrent lookups for a singleton JNDI resource. (markt)
    * Fix: Improve the performance of range validation for the default servlet. (markt)
    * Fix: Avoid NPE in RewriteValve. (markt)
    * Fix: 70127: Fix use of Bootstrap through reflection by restoring the public constructor. Use through scripts was not affected. (remm)
    * Fix: Restore ability to extend many element classes from AbstractAccessLogValve. (remm)
    * Fix: Align DIGEST authentication with RFC 7616 and require clients to provide a valid qop parameter. (markt)
    * Fix: Use Files API to create temporary docBase when antiLockingDocBase is enabled. (markt)
    * Fix: Improve validation of configuration when DataSourceRealm starts. (remm)
    * Fix: JAASRealm should do a logout if login does not fail outright but does not produce a Principal. (remm)
    * Fix: Various edge cases for SSI substitutions, quoting and escaping.
    * Fix: unintentional conversion of literal + to a space during rule processing in the RewriteValve. (markt)
  * Coyote
    * Fix: Avoid a potential JVM crash if a suitable version of Tomcat Native is not available when the connector is explicitly configured to use Tomcat Native with OpenSSL for TLS. (markt)
  * Jasper
    * Fix: 70120: The fix for 69399 (itself a fix for a regression in the fix for 69333) was incomplete and tags that threw exceptions in doStartTag() and doEndTag() were incorrectly re-used. This fix prevents tags from being re-used if such an exception occurs. (markt)
    * Add: support for specifying Java 28 (with the value 28) as the compiler source and/or compiler target for JSP compilation. If used with an Eclipse JDT compiler version that does not support these values, a warning will be logged and the default will be used. (markt)
  * WebSocket
    * Fix: 70126: Fix WebSocket extension permessage-deflate so that it does not drop bytes if a compressed message inflates to more than the available buffer. Fix written by GPT-5.5. Test case written by Hironori Ichimiya. (markt)
    * Fix: Optimise WebSocket client processing of server responses during WebSocket HTTP upgrade process. (markt)
  * Other
    * Update: to the Eclipse JDT compiler 4.40. (markt)
    * Update: Byte Buddy to 1.18.9. (markt)
    * Update: UnboundID to 7.0.5. (markt)
    * Update: JaCoCo to 0.8.15. (markt)
    * Update: BND to 7.3.0. (markt)
    * Add: Improvements to French translations. (remm)
    * Add: Improvements to Japanese translations provided by tak7iji. (markt)

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like
YaST online_update or "zypper patch".  
Alternatively you can run the command listed for your product:

  * SUSE Linux Enterprise Server for SAP Applications 15 SP6  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-3430=1

  * SUSE Linux Enterprise Server 15 SP6 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-3430=1

  * openSUSE Leap 15.6  
    zypper in -t patch SUSE-2026-3430=1

  * Web and Scripting Module 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Web-Scripting-15-SP7-2026-3430=1

## Package List:

  * Web and Scripting Module 15-SP7 (noarch)
    * tomcat11-11.0.24-150600.13.27.1
    * tomcat11-el-6_0-api-11.0.24-150600.13.27.1
    * tomcat11-webapps-11.0.24-150600.13.27.1
    * tomcat11-jsp-4_0-api-11.0.24-150600.13.27.1
    * tomcat11-servlet-6_1-api-11.0.24-150600.13.27.1
    * tomcat11-admin-webapps-11.0.24-150600.13.27.1
    * tomcat11-lib-11.0.24-150600.13.27.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6 (noarch)
    * tomcat11-11.0.24-150600.13.27.1
    * tomcat11-el-6_0-api-11.0.24-150600.13.27.1
    * tomcat11-webapps-11.0.24-150600.13.27.1
    * tomcat11-jsp-4_0-api-11.0.24-150600.13.27.1
    * tomcat11-servlet-6_1-api-11.0.24-150600.13.27.1
    * tomcat11-admin-webapps-11.0.24-150600.13.27.1
    * tomcat11-lib-11.0.24-150600.13.27.1
  * SUSE Linux Enterprise Server 15 SP6 LTSS (noarch)
    * tomcat11-11.0.24-150600.13.27.1
    * tomcat11-el-6_0-api-11.0.24-150600.13.27.1
    * tomcat11-webapps-11.0.24-150600.13.27.1
    * tomcat11-jsp-4_0-api-11.0.24-150600.13.27.1
    * tomcat11-servlet-6_1-api-11.0.24-150600.13.27.1
    * tomcat11-admin-webapps-11.0.24-150600.13.27.1
    * tomcat11-lib-11.0.24-150600.13.27.1
  * openSUSE Leap 15.6 (noarch)
    * tomcat11-11.0.24-150600.13.27.1
    * tomcat11-embed-11.0.24-150600.13.27.1
    * tomcat11-jsvc-11.0.24-150600.13.27.1
    * tomcat11-el-6_0-api-11.0.24-150600.13.27.1
    * tomcat11-docs-webapp-11.0.24-150600.13.27.1
    * tomcat11-doc-11.0.24-150600.13.27.1
    * tomcat11-webapps-11.0.24-150600.13.27.1
    * tomcat11-jsp-4_0-api-11.0.24-150600.13.27.1
    * tomcat11-servlet-6_1-api-11.0.24-150600.13.27.1
    * tomcat11-admin-webapps-11.0.24-150600.13.27.1
    * tomcat11-lib-11.0.24-150600.13.27.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-59083.html
  * https://www.suse.com/security/cve/CVE-2026-59084.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1271397
  * https://bugzilla.suse.com/show_bug.cgi?id=1271398

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.suse.com/pipermail/sle-security-updates/attachments/20260730/b2e913ae/attachment.htm>