CVE-2026-1489

glib2.0: A flaw was found in GLib

CVE-2026-1489 is fixed in 14 products on 1 platform, first by gir1.2-girepository-3.0 2.80.0-6ubuntu3.8, released January 27, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
5.4
medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0037
30th percentile

A flaw was found in GLib. An integer overflow vulnerability in its Unicode case conversion implementation can lead to memory corruption. By processing specially crafted and extremely large Unicode strings, an attacker could trigger an undersized memory allocation, resulting in out-of-bounds writes. This could cause applications utilizing GLib for string conversion to crash or become unstable.

Where it's fixed

ProductFixed inFixReleased
Linux
gir1.2-girepository-3.0 · Ubuntu 24.04.5 LTS (noble) 2.80.0-6ubuntu3.8 gir1.2-girepository-3.0 2.80.0-6ubuntu3.8 Jan 27, 2026
gir1.2-girepository-3.0 · Ubuntu 25.10 (questing) 2.86.0-2ubuntu0.3 gir1.2-girepository-3.0 2.86.0-2ubuntu0.3 Jan 27, 2026
gir1.2-girepository-3.0 · Ubuntu 26.04.1 LTS (resolute) 2.87.2-2 gir1.2-girepository-3.0 2.87.2-2 Jan 27, 2026
gir1.2-glib-2.0 · Ubuntu 24.04.5 LTS (noble) 2.80.0-6ubuntu3.8 gir1.2-glib-2.0 2.80.0-6ubuntu3.8 Jan 27, 2026
gir1.2-glib-2.0 · Ubuntu 25.10 (questing) 2.86.0-2ubuntu0.3 gir1.2-glib-2.0 2.86.0-2ubuntu0.3 Jan 27, 2026
gir1.2-glib-2.0 · Ubuntu 26.04.1 LTS (resolute) 2.87.2-2 gir1.2-glib-2.0 2.87.2-2 Jan 27, 2026
girepository-tools · Ubuntu 25.10 (questing) 2.86.0-2ubuntu0.3 girepository-tools 2.86.0-2ubuntu0.3 Jan 27, 2026
girepository-tools · Ubuntu 26.04.1 LTS (resolute) 2.87.2-2 girepository-tools 2.87.2-2 Jan 27, 2026
glib2 · opensuse-leap 15.6 2.78.6-150600.4.35.1 SUSE-SU-2026:0373-1 Feb 4, 2026
glib2 · opensuse-leap 16.0 2.84.4-160000.2.1 OPENSUSE-SU-2026:20150-1 Feb 2, 2026
glib2 · sles 15.6 2.78.6-150600.4.35.1 SUSE-SU-2026:0373-1 Feb 4, 2026
glib2 · sles 15.7 2.78.6-150600.4.35.1 SUSE-SU-2026:0373-1 Feb 4, 2026
glib2 · sles 16.0 2.84.4-160000.2.1 SUSE-SU-2026:20221-1 Feb 2, 2026
glib2-doc · opensuse-leap 15.6 2.78.6-150600.4.35.1 SUSE-SU-2026:0373-1 Feb 4, 2026
glib2-doc · opensuse-leap 16.0 2.84.4-160000.2.1 OPENSUSE-SU-2026:20150-1 Feb 2, 2026
glib2-doc · sles 16.0 2.84.4-160000.2.1 SUSE-SU-2026:20221-1 Feb 2, 2026
glib2.0 · Debian 12.15 (bookworm) 2.74.6-2+deb12u9 DEBIAN-CVE-2026-1489 Jan 27, 2026
glib2.0 · Debian 13.5 (trixie) 2.84.4-3~deb13u3 DEBIAN-CVE-2026-1489 Jan 27, 2026
glib2.0 · Debian 14 2.86.3-5 DEBIAN-CVE-2026-1489 Jan 27, 2026
libgio-2.0-dev-bin · Ubuntu 25.10 (questing) 2.86.0-2ubuntu0.3 libgio-2.0-dev-bin 2.86.0-2ubuntu0.3 Jan 27, 2026
libgio-2.0-dev-bin · Ubuntu 26.04.1 LTS (resolute) 2.87.2-2 libgio-2.0-dev-bin 2.87.2-2 Jan 27, 2026
libgirepository-2.0-0 · Ubuntu 24.04.5 LTS (noble) 2.80.0-6ubuntu3.8 libgirepository-2.0-0 2.80.0-6ubuntu3.8 Jan 27, 2026
libgirepository-2.0-0 · Ubuntu 25.10 (questing) 2.86.0-2ubuntu0.3 libgirepository-2.0-0 2.86.0-2ubuntu0.3 Jan 27, 2026
libgirepository-2.0-0 · Ubuntu 26.04.1 LTS (resolute) 2.87.2-2 libgirepository-2.0-0 2.87.2-2 Jan 27, 2026
libglib2.0-0 · Ubuntu 22.04.1 LTS (jammy) 2.72.4-0ubuntu2.9 libglib2.0-0 2.72.4-0ubuntu2.9 Jan 27, 2026
libglib2.0-0t64 · Ubuntu 24.04.5 LTS (noble) 2.80.0-6ubuntu3.8 libglib2.0-0t64 2.80.0-6ubuntu3.8 Jan 27, 2026
libglib2.0-0t64 · Ubuntu 25.10 (questing) 2.86.0-2ubuntu0.3 libglib2.0-0t64 2.86.0-2ubuntu0.3 Jan 27, 2026
libglib2.0-0t64 · Ubuntu 26.04.1 LTS (resolute) 2.87.2-2 libglib2.0-0t64 2.87.2-2 Jan 27, 2026
libglib2.0-bin · Ubuntu 22.04.1 LTS (jammy) 2.72.4-0ubuntu2.9 libglib2.0-bin 2.72.4-0ubuntu2.9 Jan 27, 2026
libglib2.0-bin · Ubuntu 24.04.5 LTS (noble) 2.80.0-6ubuntu3.8 libglib2.0-bin 2.80.0-6ubuntu3.8 Jan 27, 2026
libglib2.0-bin · Ubuntu 25.10 (questing) 2.86.0-2ubuntu0.3 libglib2.0-bin 2.86.0-2ubuntu0.3 Jan 27, 2026
libglib2.0-bin · Ubuntu 26.04.1 LTS (resolute) 2.87.2-2 libglib2.0-bin 2.87.2-2 Jan 27, 2026
libglib2.0-data · Ubuntu 22.04.1 LTS (jammy) 2.72.4-0ubuntu2.9 libglib2.0-data 2.72.4-0ubuntu2.9 Jan 27, 2026
libglib2.0-data · Ubuntu 24.04.5 LTS (noble) 2.80.0-6ubuntu3.8 libglib2.0-data 2.80.0-6ubuntu3.8 Jan 27, 2026
libglib2.0-data · Ubuntu 25.10 (questing) 2.86.0-2ubuntu0.3 libglib2.0-data 2.86.0-2ubuntu0.3 Jan 27, 2026
libglib2.0-data · Ubuntu 26.04.1 LTS (resolute) 2.87.2-2 libglib2.0-data 2.87.2-2 Jan 27, 2026
libglib2.0-dev-bin · Ubuntu 22.04.1 LTS (jammy) 2.72.4-0ubuntu2.9 libglib2.0-dev-bin 2.72.4-0ubuntu2.9 Jan 27, 2026
libglib2.0-dev-bin · Ubuntu 24.04.5 LTS (noble) 2.80.0-6ubuntu3.8 libglib2.0-dev-bin 2.80.0-6ubuntu3.8 Jan 27, 2026
libglib2.0-dev-bin · Ubuntu 25.10 (questing) 2.86.0-2ubuntu0.3 libglib2.0-dev-bin 2.86.0-2ubuntu0.3 Jan 27, 2026
libglib2.0-dev-bin · Ubuntu 26.04.1 LTS (resolute) 2.87.2-2 libglib2.0-dev-bin 2.87.2-2 Jan 27, 2026
libglib2.0-tests · Ubuntu 22.04.1 LTS (jammy) 2.72.4-0ubuntu2.9 libglib2.0-tests 2.72.4-0ubuntu2.9 Jan 27, 2026
libglib2.0-tests · Ubuntu 24.04.5 LTS (noble) 2.80.0-6ubuntu3.8 libglib2.0-tests 2.80.0-6ubuntu3.8 Jan 27, 2026
libglib2.0-tests · Ubuntu 25.10 (questing) 2.86.0-2ubuntu0.3 libglib2.0-tests 2.86.0-2ubuntu0.3 Jan 27, 2026
libglib2.0-tests · Ubuntu 26.04.1 LTS (resolute) 2.87.2-2 libglib2.0-tests 2.87.2-2 Jan 27, 2026

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