CVE-2026-1484

MEDIUM 4.2

Glib: integer overflow leading to buffer underflow and out-of-bounds write in glib g_base64_encode()

CVSS Score

4.2

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-787
Vendor	red hat
Product	red hat enterprise linux 10
Published	Jan 27, 2026
Last Updated	Mar 19, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

Low