Home / mailings [SECURITY] [DSA 6189-1] libpng1.6 security update
Posted on 31 March 2026
Debian Security Advisory- -------------------------------------------------------------------------
Debian Security Advisory DSA-6189-1 security@debian.org
https://www.debian.org/security/ Moritz Muehlenhoff
March 31, 2026 https://www.debian.org/security/faq
- -------------------------------------------------------------------------
Package : libpng1.6
CVE ID : CVE-2026-33416 CVE-2026-33636
Two security vulnerabilities were discovered in libpng, a library
implementing an interface for reading and writing PNG (Portable Network
Graphics) files, which could result in denial of service or potentially
the execution of arbitrary code.
For the oldstable distribution (bookworm), these problems have been fixed
in version 1.6.39-2+deb12u4.
For the stable distribution (trixie), these problems have been fixed in
version 1.6.48-1+deb13u4.
We recommend that you upgrade your libpng1.6 packages.
For the detailed security status of libpng1.6 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/libpng1.6
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
