PT-2026-118335 · Libexpat · Libexpat

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CVE-2026-113351

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Published

2026-10-20

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Updated

2026-10-20

CVSS v3.1

5.9

Medium

VectorAV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
libexpat 2.7.2 through 2.9.0 contains a denial of service vulnerability because XML ParserReset zeroes the direct byte count but never offsets tracked heap allocations. Attackers can submit a large XML document so later documents on the same reset parser fail with XML ERROR NO MEMORY until it is recreated.

Fix

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Weakness Enumeration

Related Identifiers

CVE-2026-113351

Affected Products

Libexpat