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Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process. A heap-buffer-overflow READ vulnerability exists in GLib's g_regex_replace() function when used with G_REGEX_RAW compile flag and case-change replacement escapes (\U, \L, \u, \l). In G_REGEX_RAW mode, PCRE2 treats the subject string as raw bytes rather than UTF-8. Matched substrings can therefore contain arbitrary byte sequences that are not valid UTF-8. When the replacement string contains case-change escapes (e.g., \U\0 to uppercase the match), the internal string_append() function processes the matched substring using UTF-8 functions (g_utf8_get_char(), g_utf8_next_char()) which assume valid UTF-8 input. A multi-byte UTF-8 lead byte (e.g., 0xF4 indicating a 4-byte sequence) in the matched data causes these functions to read beyond the heap-allocated buffer.
FEDORA-2026-825932ea60 (mingw-glib2-2.86.5-1.fc43) has been submitted as an update to Fedora 43. https://bodhi.fedoraproject.org/updates/FEDORA-2026-825932ea60
FEDORA-2026-5a55313adb (mingw-glib2-2.88.2-1.fc44) has been submitted as an update to Fedora 44. https://bodhi.fedoraproject.org/updates/FEDORA-2026-5a55313adb
FEDORA-2026-5a55313adb has been pushed to the Fedora 44 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-5a55313adb` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-5a55313adb See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-2026-825932ea60 has been pushed to the Fedora 43 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-825932ea60` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-825932ea60 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-2026-8e39f35701 has been pushed to the Fedora 43 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-8e39f35701` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-8e39f35701 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-2026-7bf2937528 has been pushed to the Fedora 44 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-7bf2937528` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-7bf2937528 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-2026-7bf2937528 (mingw-glib2-2.88.2-2.fc44) has been pushed to the Fedora 44 stable repository. If problem still persists, please make note of it in this bug report.
FEDORA-2026-8e39f35701 (mingw-glib2-2.86.5-2.fc43) has been pushed to the Fedora 43 stable repository. If problem still persists, please make note of it in this bug report.