CVE-2025-13601

A heap-based buffer overflow problem was found in glib through an incorrect calculation of buffer size in the g_escape_uri_string() function. If the string to escape contains a very large number of unacceptable characters (which would need escaping), the calculation of the length of the escaped string could overflow, leading to a potential write off the end of the newly allocated string.

Scoring

Severity
HIGH
CVSS base score
7.7
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
EPSS probability
0.32%
CWE
CWE-190
Published
2025-11-26
Last modified
2026-08-31

Affected products

Weakness type

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