Home / mailings [SECURITY] [DSA 6263-1] libpng1.6 security update
Posted on 10 May 2026
Debian Security Advisory- -------------------------------------------------------------------------
Debian Security Advisory DSA-6263-1 security@debian.org
https://www.debian.org/security/ Moritz Muehlenhoff
May 10, 2026 https://www.debian.org/security/faq
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Package : libpng1.6
CVE ID : CVE-2026-34757
A use-after-free was discovered in libpng, a library implementing an
interface for reading and writing PNG (Portable Network Graphics) files.
For the oldstable distribution (bookworm), this problem has been fixed
in version 1.6.39-2+deb12u5.
For the stable distribution (trixie), this problem has been fixed in
version 1.6.48-1+deb13u5.
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
