CVE-2026-56409

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CVSS 3.1

6.5 medium

EPSS

<1%p3

Published

Jun 21, 2026 (Jun 21, 2026)

Modified

Jun 23, 2026

Description

xmlwf in libexpat before 2.8.2 has an integer overflow for the output filename when -d outputDir is used.

Vendors: libexpat project
Products: libexpat
Weakness: CWE-190
Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L

NVD CVE.org GitHub PoCs EPSS (0.1%)

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