Veille CVE
CVE-2026-74860
8.5 ÉlevéeDescription
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.
Produits concernés
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat Cert Manager support for Red Hat OpenShift release 1.20
- Red Hat Cost Management On-Premise 1
- Red Hat Hardened Images
- Red Hat Update Infrastructure 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat OpenShift Container Platform 4
Scores CVSS
| Version | Score | Source | Vecteur |
|---|---|---|---|
| 3.1 | 8.5 Élevée | secalert@redhat.com | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H |
Faiblesses (CWE)
Références
- https://access.redhat.com/errata/RHSA-2026:64463
- https://access.redhat.com/errata/RHSA-2026:71585
- https://access.redhat.com/errata/RHSA-2026:71586
- https://access.redhat.com/errata/RHSA-2026:71641
- https://access.redhat.com/errata/RHSA-2026:72470
- https://access.redhat.com/errata/RHSA-2026:72475
- https://access.redhat.com/errata/RHSA-2026:72476
- https://access.redhat.com/errata/RHSA-2026:79357
- https://access.redhat.com/errata/RHSA-2026:82939
- https://access.redhat.com/security/cve/CVE-2026-74860
- https://bugzilla.redhat.com/show_bug.cgi?id=2529697