CVE-2026-56412

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.

References

https://github.com/libexpat/libexpat/pull/1278

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3