HIGHVulnerability
CVE-2026-74860
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.
Properties
- severity
- HIGH
- score
- 8.5
- cve_id
- CVE-2026-74860
- signal_observed_at
- 2026-09-16T21:37:07+00:00
- vector
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
- published_at
- 2026-09-08T12:16:58.083
- last_modified
- 2026-09-10T20:17:28.660
Related Entities (2)
HAS_WEAKNESS (1)
→[Weakness]Release of Invalid Pointer or Reference
DESCRIBED_BY (1)
→[Source]NVD
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