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CVE PROGRAM SOURCE RECORD8.5 High

CVE-2026-74860

Libxml2: double-free/uaf in libxml2 python bindings

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Status
Published
Published
Updated
Assigning organization
redhat

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Red Hat Red Hat Enterprise Linux 10

Default version status: affected

  • 0:2.12.5-10.el10_2.4 to < *unaffected

Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support

Default version status: affected

  • 0:2.12.5-9.el10_0.9 to < *unaffected

Red Hat Red Hat Enterprise Linux 8

Default version status: affected

  • 0:2.9.7-21.el8_10.9 to < *unaffected

Red Hat Red Hat Enterprise Linux 8

Default version status: affected

  • 0:2.9.7-21.el8_10.9 to < *unaffected

Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support

Default version status: affected

  • 0:2.9.7-13.el8_6.24 to < *unaffected

Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On

Default version status: affected

  • 0:2.9.7-13.el8_6.24 to < *unaffected

Red Hat Red Hat Enterprise Linux 9

Default version status: affected

  • 0:2.9.13-14.el9_8.5 to < *unaffected

Red Hat Red Hat Enterprise Linux 9

Default version status: affected

  • 0:2.9.13-14.el9_8.5 to < *unaffected

Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Default version status: affected

  • 0:2.9.13-3.el9_2.20 to < *unaffected

Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions

Default version status: affected

  • 0:2.9.13-13.el9_4.10 to < *unaffected

Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support

Default version status: affected

  • 0:2.9.13-13.el9_6 to < *unaffected

Red Hat Cert Manager support for Red Hat OpenShift release 1.20

Default version status: affected

  • 1790589912 to < *unaffected

Red Hat Cert Manager support for Red Hat OpenShift release 1.20

Default version status: affected

  • 1790589914 to < *unaffected

Red Hat Cert Manager support for Red Hat OpenShift release 1.20

Default version status: affected

  • 1790589855 to < *unaffected

Red Hat Red Hat Cost Management On-Premise 1

Default version status: affected

  • 1791460851 to < *unaffected

Red Hat Red Hat Hardened Images

Default version status: affected

  • 2.15.4-0.1.hum1 to < *unaffected

Red Hat Red Hat OpenShift AI 3.0

Default version status: affected

  • 1793041986 to < *unaffected

Red Hat Red Hat OpenShift AI 3.0

Default version status: affected

  • 1793041981 to < *unaffected

Red Hat Red Hat OpenShift AI 3.0

Default version status: affected

  • 1793042072 to < *unaffected

Red Hat Red Hat OpenShift AI 3.0

Default version status: affected

  • 1793042067 to < *unaffected

Red Hat Red Hat OpenShift AI 3.0

Default version status: affected

  • 1793041987 to < *unaffected

Red Hat Red Hat OpenShift AI 3.4

Default version status: affected

  • 1793042006 to < *unaffected

Red Hat Red Hat OpenShift AI 3.4

Default version status: affected

  • 1793042145 to < *unaffected

Red Hat Red Hat OpenShift AI 3.4

Default version status: affected

  • 1793042006 to < *unaffected

Red Hat Red Hat OpenShift AI 3.4

Default version status: affected

  • 1793042011 to < *unaffected

Red Hat Red Hat OpenShift AI 3.4

Default version status: affected

  • 1793042086 to < *unaffected

Red Hat Red Hat OpenShift AI 3.4

Default version status: affected

  • 1793042088 to < *unaffected

Red Hat Red Hat OpenShift AI 3.4

Default version status: affected

  • 1793041995 to < *unaffected

Red Hat Red Hat OpenShift AI 3.4

Default version status: affected

  • 1793042074 to < *unaffected

Red Hat Red Hat OpenShift AI 3.4

Default version status: affected

  • 1793042008 to < *unaffected

Red Hat Red Hat OpenShift AI 3.5

Default version status: affected

  • 1793042010 to < *unaffected

Red Hat Red Hat OpenShift AI 3.5

Default version status: affected

  • 1793042162 to < *unaffected

Red Hat Red Hat OpenShift AI 3.5

Default version status: affected

  • 1793042004 to < *unaffected

Red Hat Red Hat OpenShift AI 3.5

Default version status: affected

  • 1793042092 to < *unaffected

Red Hat Red Hat OpenShift AI 3.5

Default version status: affected

  • 1793042117 to < *unaffected

Red Hat Red Hat OpenShift AI 3.5

Default version status: affected

  • 1793042093 to < *unaffected

Red Hat Red Hat OpenShift AI 3.5

Default version status: affected

  • 1793042114 to < *unaffected

Red Hat Red Hat OpenShift AI 3.5

Default version status: affected

  • 1793042024 to < *unaffected

Red Hat Red Hat OpenShift AI 3.5

Default version status: affected

  • 1793042008 to < *unaffected

Red Hat Red Hat Update Infrastructure 5

Default version status: affected

  • 1791978534 to < *unaffected

Red Hat Red Hat Update Infrastructure 5

Default version status: affected

  • 1791978528 to < *unaffected

Red Hat Red Hat Update Infrastructure 5

Default version status: affected

  • 1791978528 to < *unaffected

Red Hat Red Hat Update Infrastructure 5

Default version status: affected

  • 1791964013 to < *unaffected

Red Hat Red Hat Update Infrastructure 5

Default version status: affected

  • 1791978693 to < *unaffected

Red Hat Red Hat Enterprise Linux 10

Default version status: unaffected

Red Hat Red Hat Enterprise Linux 6

Default version status: unknown

Red Hat Red Hat Enterprise Linux 7

Default version status: affected

Red Hat Red Hat Enterprise Linux 8

Default version status: unaffected

Red Hat Red Hat Enterprise Linux 9

Default version status: unaffected

Red Hat Red Hat Hardened Images

Default version status: unaffected

Red Hat Red Hat OpenShift Container Platform 4

Default version status: unaffected

Red Hat Red Hat OpenShift Container Platform 4

Default version status: unaffected

Red Hat Red Hat OpenShift Container Platform 4

Default version status: unaffected

Red Hat Red Hat OpenShift Container Platform 5

Default version status: unaffected

References