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CVE-2026-74860

8.5 high SSVC exploitation: none Published
NVD · CVE.org

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.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Change history 6

  1. StatusAwaiting Analysis → PublishedNVD modified 2026-10-26 16:16
  2. References+1 references (now 14)NVD modified 2026-10-26 17:17
  3. StatusPublished → Awaiting AnalysisNVD modified 2026-10-26 17:17
  4. StatusAwaiting Analysis → PublishedNVD modified 2026-10-26 07:03
  5. References+2 references (now 13)NVD modified 2026-10-26 07:17
  6. First seenCVSS 8.5NVD modified 2026-10-14 19:17

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 14