Fedora 43 mingw-libpng Critical Update CVE-2026-33636 2026-7576b56379
fedora
April 5, 2026
Update to libpng-1.6.56.
Summary
MinGW Windows Libpng library.
Update Information:
Update to libpng-1.6.56.
Change Log
* Fri Mar 27 2026 Sandro Mani
References
[ 1 ] Bug #2452119 - CVE-2026-33636 mingw-libpng: libpng: Information disclosure and denial of service via out-of-bounds read/write in Neon palette expansion [fedora-42]
https://bugzilla.redhat.com/show_bug.cgi?id=2452119
[ 2 ] Bug #2452132 - CVE-2026-33636 mingw-libpng: libpng: Information disclosure and denial of service via out-of-bounds read/write in Neon palette expansion [fedora-43]
https://bugzilla.redhat.com/show_bug.cgi?id=2452132
[ 3 ] Bug #2452147 - CVE-2026-33416 mingw-libpng: libpng: Arbitrary code execution due to use-after-free vulnerability [fedora-42]
https://bugzilla.redhat.com/show_bug.cgi?id=2452147
[ 4 ] Bug #2452158 - CVE-2026-33416 mingw-libpng: libpng: Arbitrary code execution due to use-after-free vulnerability [fedora-43]
https://bugzilla.redhat.com/show_bug.cgi?id=2452158
Update Instructions
This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-7576b56379' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label
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Name: mingw-libpng
Product: Fedora 43
Version: 1.6.56
Release: 1.fc43
Summary: MinGW Windows Libpng library
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