Home / mailings [SECURITY] [DSA 6112-1] openjdk-21 security update
Posted on 27 January 2026
Debian Security Advisory- -------------------------------------------------------------------------
Debian Security Advisory DSA-6112-1 security@debian.org
https://www.debian.org/security/ Moritz Muehlenhoff
January 27, 2026 https://www.debian.org/security/faq
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Package : openjdk-21
CVE ID : CVE-2026-21925 CVE-2026-21932 CVE-2026-21933
CVE-2026-21945
Several vulnerabilities have been discovered in the OpenJDK Java
runtime, which may result in incorrect certificate validation, CRLF
injection or man-in-the-middle attacks.
For the stable distribution (trixie), these problems have been fixed in
version 21.0.10+7-1~deb13u1.
We recommend that you upgrade your openjdk-21 packages.
For the detailed security status of openjdk-21 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/openjdk-21
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org
