CVE-2026-56412

MediumCVSS 5.9/10Last modified Jun 23, 2026

Description

libexpat before 2.8.2 does not consider XML_TOK_DATA_CHARS in doCdataSection and thus lacks handler call depth tracking for various calls from within handlers in cases of a policy violation. Thus, a use-after-free can occur. NOTE: this issue exists because of an incomplete fix for CVE-2026-50219.

Metrics

CVSS 3.1 5.9/10CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Weakness enumeration

CWE-416

Affected software

No affected versions have been published.

Timeline

Published
Jun 21, 2026
Last modified
Jun 23, 2026
NVD status
Analyzed

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