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CVE-2026-74860 - Libxml2: double-free/uaf in libxml2 python bindings

CVE ID :CVE-2026-74860
Published : Sept. 8, 2026, 12:16 p.m. | 48 minutes ago
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.
Severity: 8.5 | HIGH
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