Home / mailings [SECURITY] [DSA 6566-1] expat security update
Posted on 16 October 2026
Debian Security Advisory- -------------------------------------------------------------------------
Debian Security Advisory DSA-6566-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
October 16, 2026 https://www.debian.org/security/faq
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Package : expat
CVE ID : CVE-2026-66046 CVE-2026-76956 CVE-2026-76957 CVE-2026-77214
CVE-2026-93990 CVE-2026-102633
Debian Bug : 1144925 1144926 1144927 1148665 1149507 1150320
Several vulnerabilities have been discovered in Expat, an XML parsing C
library, which could result in denial of service or potentially the
execution of arbitrary code, if a malformed XML file is processed.
For the stable distribution (trixie), these problems have been fixed in
version 2.9.0-1~deb13u1.
We recommend that you upgrade your expat packages.
For the detailed security status of expat please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/expat
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
