Home / mailings [SECURITY] [DSA 6017-1] haproxy security update
Posted on 03 October 2025
Debian Security Advisory- -------------------------------------------------------------------------
Debian Security Advisory DSA-6017-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
October 03, 2025 https://www.debian.org/security/faq
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Package : haproxy
CVE ID : CVE-2025-11230
Oula Kivalo reported that HAProxy, a fast and reliable load balancing
reverse proxy, is prone to a denial of service vulnerability when
parsing JSON numbers.
For the oldstable distribution (bookworm), this problem has been fixed
in version 2.6.12-1+deb12u3.
For the stable distribution (trixie), this problem has been fixed in
version 3.0.11-1+deb13u1.
We recommend that you upgrade your haproxy packages.
For the detailed security status of haproxy please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/haproxy
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
