CVE-2026-1484
4.2
MEDIUM
CVSS 3.1
EPSS 0.02%
Description
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.
How to fix CVE-2026-1484
To remediate CVE-2026-1484, upgrade the affected package to a fixed version below.
- —upgrade to 2.66.8-1+deb11u8 or later
Is CVE-2026-1484 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 2.66.8-1+deb11u8
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.2 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L |