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openSUSE Leap 15.6 Tomcat 13 Request Handling Vulnerability Notice

opensuse
Calendar Grey April 23, 2026
Dist Opensuse Esm H88
Significant security update available for Tomcat 11 in openSUSE, addressing 11 important issues and vulnerabilities.
An update that solves 11 vulnerabilities can now be installed.

Description

This update for tomcat11 fixes the following issues:

Security fixes:

* CVE-2026-24880: Request smuggling via invalid chunk extension (bsc#1261850).

* CVE-2026-25854: Occasionally open redirect (bsc#1261851).

* CVE-2026-29129: TLS cipher order is not preserved (bsc#1261852).

* CVE-2026-29145: OCSP checks sometimes soft-fail even when soft-fail is

disabled (bsc#1261853).

* CVE-2026-29146,CVE-2026-34486: Fix for allowed bypass of EncryptInterceptor

(bsc#1261854).

* CVE-2026-34483: Incomplete escaping of JSON access logs (bsc#1261855).

* CVE-2026-34487: Cloud membership for clustering component exposed the

Kubernetes bearer token (bsc#1261856).

* CVE-2026-34500: OCSP checks sometimes soft-fail with FFM even when soft-fail

is disabled (bsc#1261857).

* CVE-2026-32990: The fix for CVE-2025-66614 was incomplete, so this CVE

completes it (bsc#1258371).

Other fixes:

* Update to Tomcat 11.0.21

Topics%20covered

Topics Covered

security advisory important tomcat request smuggling OpenSUSE tls checks

Patch

## 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:

* openSUSE Leap 15.6

zypper in -t patch SUSE-2026-1558=1

* Web and Scripting Module 15-SP7

zypper in -t patch SUSE-SLE-Module-Web-Scripting-15-SP7-2026-1558=1

* SUSE Linux Enterprise Server 15 SP6 LTSS

zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-1558=1

* SUSE Linux Enterprise Server for SAP Applications 15 SP6

zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-1558=1

Package List

* openSUSE Leap 15.6 (noarch)

* tomcat11-jsp-4_0-api-11.0.21-150600.13.18.1

* tomcat11-webapps-11.0.21-150600.13.18.1

* tomcat11-embed-11.0.21-150600.13.18.1

* tomcat11-jsvc-11.0.21-150600.13.18.1

* tomcat11-lib-11.0.21-150600.13.18.1

* tomcat11-doc-11.0.21-150600.13.18.1

* tomcat11-11.0.21-150600.13.18.1

* tomcat11-docs-webapp-11.0.21-150600.13.18.1

* tomcat11-admin-webapps-11.0.21-150600.13.18.1

* tomcat11-el-6_0-api-11.0.21-150600.13.18.1

* tomcat11-servlet-6_1-api-11.0.21-150600.13.18.1

* Web and Scripting Module 15-SP7 (noarch)

* tomcat11-jsp-4_0-api-11.0.21-150600.13.18.1

* tomcat11-webapps-11.0.21-150600.13.18.1

* tomcat11-lib-11.0.21-150600.13.18.1

* tomcat11-11.0.21-150600.13.18.1

* tomcat11-admin-webapps-11.0.21-150600.13.18.1

* tomcat11-el-6_0-api-11.0.21-150600.13.18.1

* tomcat11-servlet-6_1-api-11.0.21-150600.13.18.1

* SUSE Linux Enterprise Server 15 SP6 LTSS (noarch)

* tomcat11-jsp-4_0-api-11.0.21-150600.13.18.1

* tomcat11-webapps-11.0.21-150600.13.18.1

* tomcat11-lib-11.0.21-150600.13.18.1

*...

Read the Full Advisory

References

* bsc#1258371

* bsc#1261850

* bsc#1261851

* bsc#1261852

* bsc#1261853

* bsc#1261854

* bsc#1261855

* bsc#1261856

* bsc#1261857

## References:

* https://www.suse.com/security/cve/CVE-2025-66614.html

* https://www.suse.com/security/cve/CVE-2026-24880.html

* https://www.suse.com/security/cve/CVE-2026-25854.html

* https://www.suse.com/security/cve/CVE-2026-29129.html

* https://www.suse.com/security/cve/CVE-2026-29145.html

* https://www.suse.com/security/cve/CVE-2026-29146.html

* https://www.suse.com/security/cve/CVE-2026-32990.html

* https://www.suse.com/security/cve/CVE-2026-34483.html

* https://www.suse.com/security/cve/CVE-2026-34486.html

* https://www.suse.com/security/cve/CVE-2026-34487.html

* https://www.suse.com/security/cve/CVE-2026-34500.html

* https://bugzilla.suse.com/show_bug.cgi?id=1258371

* https://bugzilla.suse.com/show_bug.cgi?id=1261850

* https://bugzilla.suse.com/show_bug.cgi?id=1261851

* https://bugzilla.suse.com/show_bug.cgi?id=1261852

* https://bugzilla.suse.com/show_bug.cgi?id=1261853

*...

Read the Full Advisory

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:1558-1
Release Date: 2026-04-22T16:24:40Z
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

Topics%20covered

Topics Covered

security advisory important tomcat request smuggling OpenSUSE tls checks

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