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Debian nginx Critical Remote Code Execution Denial of Service DSA-6374-1

debian
Calendar Grey June 30, 2026
Debian Logo
Debian DSA-6374-1 fixes multiple critical vulnerabilities in nginx affecting stable trixie release.
Multiple vulnerabilities were discoverd in Nginx, a high-performance web and reverse proxy server, which could result in remote code execution, denial of service or memory disclosu...
Topics%20covered

Topics Covered

security advisory denial of service critical remote code execution debian memory disclosure

Summary

For the stable distribution (trixie), these problems have been fixed in
version 1.26.3-3+deb13u7.

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/



Severity
critical
Lowest
Low
Medium
High
Critical

Package: nginx
CVE ID: CVE-2026-42055 CVE-2026-48142

Topics%20covered

Topics Covered

security advisory denial of service critical remote code execution debian memory disclosure

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