Home / mailings [SECURITY] [DSA 6131-1] nginx security update
Posted on 12 February 2026
Debian Security Advisory- -------------------------------------------------------------------------
Debian Security Advisory DSA-6131-1 security@debian.org
https://www.debian.org/security/ Moritz Muehlenhoff
February 12, 2026 https://www.debian.org/security/faq
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Package : nginx
CVE ID : CVE-2026-1642
A vulnerability has been discovered in Nginx, a high-performance web
and reverse proxy server: If configured to proxy to an upstream TLS
server, a man-in-the-middle injection attack was possible.
For the oldstable distribution (bookworm), this problem has been fixed
in version 1.22.1-9+deb12u4.
For the stable distribution (trixie), this problem has been fixed in
version 1.26.3-3+deb13u2.
We recommend that you upgrade your nginx packages.
For the detailed security status of nginx please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/nginx
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
