Home / mailings [SECURITY] [DSA 6502-1] mkvtoolnix security update
Posted on 16 September 2026
Debian Security Advisory- -------------------------------------------------------------------------
Debian Security Advisory DSA-6502-1 security@debian.org
https://www.debian.org/security/ Moritz Muehlenhoff
September 16, 2026 https://www.debian.org/security/faq
- -------------------------------------------------------------------------
Package : mkvtoolnix
CVE ID : CVE-2026-90783
A buffer overflow was found in the ODML parser of MKVToolNix, a set of
command-line tools (and GUI) to work with Matroska files, which could
potentially result in the execution of arbitrary code when processing
malformed .mkv files.
For the stable distribution (trixie), this problem has been fixed in
version 92.0-1+deb13u1.
We recommend that you upgrade your mkvtoolnix packages.
For the detailed security status of mkvtoolnix please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/mkvtoolnix
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
