CVE-2026-1484
glib2.0: A flaw was found in the GLib Base64 encoding routine when processing very large input data
CVE-2026-1484 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
4.2
medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0034
27th percentile
A flaw was found in the GLib Base64 encoding routine when processing very large input data. Due to incorrect use of integer types during length calculation, the library may miscalculate buffer boundaries. This can cause memory writes outside the allocated buffer. Applications that process untrusted or extremely large Base64 input using GLib may crash or behave unpredictably.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| 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-2026-1484 | Jan 27, 2026 |
| glib2.0 · Debian 13.5 (trixie) | 2.84.4-3~deb13u3 | DEBIAN-CVE-2026-1484 | Jan 27, 2026 |
| glib2.0 · Debian 14 | 2.86.3-5 | DEBIAN-CVE-2026-1484 | 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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