Home / mailings [SECURITY] [DSA 6323-1] apache2 security update
Posted on 06 June 2026
Debian Security Advisory- -------------------------------------------------------------------------
Debian Security Advisory DSA-6323-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
June 06, 2026 https://www.debian.org/security/faq
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Package : apache2
CVE ID : CVE-2026-49975
Debian Bug : 1138750
It was discovered that incorrect cookie header accounting in the HTTP/2
implementation of the Apache HTTP server may result in denial of service
(excessive resources consumption).
For the oldstable distribution (bookworm), this problem has been fixed
in version 2.4.67-1~deb12u3.
For the stable distribution (trixie), this problem has been fixed in
version 2.4.67-1~deb13u3.
We recommend that you upgrade your apache2 packages.
For the detailed security status of apache2 please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/apache2
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
