CVE-2026-1484

MEDIUM

Red Hat Enterprise Linux 6-10 - Out-of-bounds Write in GLib Base64 Encoding Routine

Title source: llm

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.

References (3)

Core 3

Core References

https://gitlab.gnome.org/GNOME/glib/-/issues/3870

Vendor Advisory vdb-entry x_refsource_redhat

https://access.redhat.com/security/cve/CVE-2026-1484

Issue Tracking issue-tracking x_refsource_redhat

https://bugzilla.redhat.com/show_bug.cgi?id=2433259

Scores

CVSS v3 4.2

EPSS 0.0002

EPSS Percentile 4.8%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-787

Status published

Products (5)

Red Hat/Red Hat Enterprise Linux 10

Red Hat/Red Hat Enterprise Linux 6

Red Hat/Red Hat Enterprise Linux 7

Red Hat/Red Hat Enterprise Linux 8

Red Hat/Red Hat Enterprise Linux 9

Published Jan 27, 2026

Tracked Since Feb 18, 2026