CVE-2026-93546

Name	CVE-2026-93546
Description	Integer overflow in mod_dav_fs in Apache HTTP Server through 2.4.68 allows an authenticated WebDAV client with write access to crash worker processes and persistently corrupt a directory's property database via PROPPATCH requests declaring many XML namespaces.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DSA-6569-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
apache2 (PTS)	bookworm	2.4.68-1~deb12u1	vulnerable
	bookworm (security)	2.4.67-1~deb12u3	vulnerable
	trixie	2.4.68-1~deb13u1	vulnerable
	trixie (security)	2.4.69-1~deb13u1	fixed
	forky, sid	2.4.69-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
apache2	source	trixie	2.4.69-1~deb13u1		DSA-6569-1
apache2	source	(unstable)	2.4.69-1

Notes

https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2026-93546
Fixed by: https://github.com/apache/httpd/commit/fa8c354189597453b2c8b38e081efa9b723abd3c