PT-2026-69331 · Libexpat · Libexpat

CVE-2026-72522

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Published

2026-08-10

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Updated

2026-09-09

CVSS v3.1

6.2

Medium

VectorAV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Name of the Vulnerable Software and Affected Versions libexpat versions prior to 2.8.3
Description An out-of-bounds read and a resulting infinite loop occur during Unicode processing. This happens because low surrogates are treated identically to high surrogates within the * toUtf16 functions.
Recommendations Update libexpat to version 2.8.3 or later.

Exploit

Fix

Out of bounds Read

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Weakness Enumeration

Related Identifiers

AZL-94698
CVE-2026-72522
ECHO-DE7D-DEEA-1F3E
OESA-2026-3403
OPENSUSE-SU-2026:11733-1
RHSA-2026:54869

Affected Products

Libexpat