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CVE-2026-56408

MEDIUM NVD

CVSS Score 6.9

Severity MEDIUM

Published Jun 21, 2026

Vendor unknown

Description

libexpat before 2.8.2 has an integer overflow in copyString.

References

https://github.com/libexpat/libexpat/commit/16e2efd867ea8567ffa012210b52ef5918e20817