CVE-2026-72522

Published: Aug 10, 2026Modified: Oct 24, 2026Deferred

6.2

Vector

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

Exploitability: 2.5 / Impact: 3.6

Source: MITRE (Secondary)

Description

libexpat before 2.8.3 has an out-of-bounds read and resultant infinite loop because low surrogates are treated the same as high surrogates during Unicode processing in the *_toUtf16 functions.

Related CWEs

CWE-125

Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

References (3)

https://bugzilla.mozilla.org/show_bug.cgi?id=2053153

Source: cve@mitre.org

https://github.com/libexpat/libexpat/pull/1296

Source: cve@mitre.org

http://www.openwall.com/lists/oss-security/2026/08/11/5

Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.