Status: UPDATED
| Advisory ID: CVE-2026-74860
Key Details
| CVE | CVE-2026-74860 |
| CVSS Score / Version | 8.5 (High) / CVSS v3.1 |
| Updated | 2026-10-06 |
| CVSS Vector | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H |
| CVSS Prose | attack vector is network; attack complexity is high; privileges required is low; user interaction is none; scope is changed; confidentiality impact is high; integrity impact is high; availability impact is high. |
| Affected products | see table below |
| Classified as | CWE-763 (Release of Invalid Pointer or Reference) |
Affected Products, Subsystems & Sectors
| Subsystems | OT Supporting Infrastructure |
| Sectors | Multiple |
What to Know
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. (NVD)
What to Do
Monitor Red Hat's web page for any future patch releases.
References