Debian OpenJDK DSA-6110-1 Critical Cert Validation Man-in-the-Middle Attack
debian
January 25, 2026
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
Topics Covered
Summary
For the oldstable distribution (bookworm), these problems have been fixed
in version 17.0.18+8-1~deb12u1.
We recommend that you upgrade your openjdk-17 packages.
For the detailed security status of openjdk-17 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/openjdk-17
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/
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Severity
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Critical
Package: openjdk-17
CVE ID: CVE-2026-21925 CVE-2026-21932 CVE-2026-21933
Topics Covered
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