CVE-2026-56412EPSS p3.6%

CVE-2026-56412CVE-2026-56412

libexpat_project / libexpat

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.

Scoring

CVSS 4.9 ()
VectorCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
EPSS0.14% probability of exploitation · percentile 3.6% · 2026-08-06T12:00:30Z
Last modified2026-06-23
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.