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Fedora 42 mingw-glib2 Critical Denial of Service Patch 2026

Linuxsecurity •LinuxSecurity Advisories • January 26, 2026

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MinGW Windows Glib2 library. Update Information : Backport patch for CVE-2026.0988.

MinGW Windows Glib2 library.

Backport patch for CVE-2026.0988.

* Sat Jan 17 2026 Sandro Mani - 2.84.4-2 - Backport fix for CVE-2026-0988

[ 1 ] Bug #2429900 - CVE-2026-0988 mingw-glib2: GLib: Denial of Service via Integer Overflow in g_buffered_input_stream_peek() [fedora-42] [ 2 ] Bug #2429919 - CVE-2026-0988 mingw-glib2: GLib: Denial of Service via Integer Overflow in g_buffered_input_stream_peek() [fedora-43]

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-0955012bb5' at the command line. For more information, refer to the dnf documentation available at

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Critical Denial of Service Patch for Fedora 42's mingw-glib2 Library Fedora 42 has released a critical patch for the MinGW Windows Glib2 library addressing CVE-2026-0988, which involves a denial of service vulnerability due to an integer overflow in the g_buffered_input_stream_peek() function. This vulnerability affects users of the library, necessitating immediate updates to mitigate potential exploits. 4 sources 26

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Fedora 42 mingw-glib2 Critical Denial of Service Patch 2026

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