Debian DSA-6131-1 Nginx Important Man-in-the-Middle Risk CVE-2026-1642
debian
February 12, 2026
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 attac...
Topics Covered
Summary
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/source-package/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/
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Severity
important
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Critical
Package: nginx
CVE ID: CVE-2026-1642
Topics Covered
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