Debian alert DLA-4619-1 (tomcat9)

From:
             
 
Markus Koschany <apo@debian.org>
To:
             
 
debian-lts-announce <debian-lts-announce@lists.debian.org>
Subject:
             
 
[SECURITY] [DLA 4619-1] tomcat9 security update
Date:
             
 
Sun, 07 Jun 2026 00:30:07 +0200
Message-ID:
             
 
<43f717322440c44147412d33d7ad7ad43568a830.camel@debian.org>
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Debian LTS Advisory DLA-4619-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                      Markus Koschany
June 07, 2026                                 https://wiki.debian.org/LTS
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Package        : tomcat9
Version        : 9.0.118-0+deb11u1
CVE ID         : CVE-2026-24880 CVE-2026-25854 CVE-2026-29129 CVE-2026-29145 
                 CVE-2026-29146 CVE-2026-32990 CVE-2026-34483 CVE-2026-34487 
                 CVE-2026-34500 CVE-2026-41284 CVE-2026-41293 CVE-2026-42498 
                 CVE-2026-43512 CVE-2026-43513 CVE-2026-43514 CVE-2026-43515

Multiple security vulnerabilities have been discovered in Tomcat 9, a Java
based web server, servlet and JSP engine which may result in a denial of
service, authentication bypass or the disclosure of sensitive information.

In order to address certain vulnerabilities and restore the compatibility with
Tomcat 9, an upgrade of the Tomcat native library, libtcnative-1, was required
as well. 

Although we are not aware of any problems, new upstream versions may introduce
new options, limits or code changes which may or may not affect your existing
web applications. We recommend to consult the Tomcat 9 documentation for
further information.

For Debian 11 bullseye, these problems have been fixed in version
9.0.118-0+deb11u1.

We recommend that you upgrade your tomcat9 packages.

For the detailed security status of tomcat9 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/tomcat9

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS


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