CVEvulnerability

CVE-2026-74860

8.5 HIGH Published 2026-09-08 Modified 2026-10-29 Official page ↗
Status
Awaiting Analysis
Published
2026-09-08
Last modified
2026-10-29
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.5 HIGH — CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Weaknesses
CWE-763

Description

A flaw was found in libxml2 with Python bindings enabled. A remote attacker could exploit this vulnerability by providing a specially crafted XML document containing a Document Type Definition (DTD) with enumerated attribute values. This triggers a double-free error in the SAX attributeDecl callback handler, where a string is freed twice. This flaw can lead to a denial of service (DoS) due to a reproducible crash in Python applications using the libxml2 SAX bindings.

Related

Weakness · CWE (1)

  • CWE-763 Release of Invalid Pointer or Reference weakness

References