Security Advisory

CVE-2026-56412

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-06-21 15:58:59

Last updated 2026-06-22 16:31:06

Assigner mitre

CVSS score 4.9

State PUBLISHED

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.

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