# CVE-2026-74860

## Summary

- **CVE ID:** CVE-2026-74860
- **Severity:** HIGH
- **CVSS Score:** 8.5 (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H)
- **CWE:** CWE-763
- **Published:** Sep 8, 2026
- **Last Modified:** Sep 9, 2026

## 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

- Red Hat — Red Hat Hardened Images (2.15.4-0.1.hum1)

## References

- [CNA](https://access.redhat.com/security/cve/CVE-2026-74860)
- [CNA](https://bugzilla.redhat.com/show_bug.cgi?id=2529697)
- [CNA](https://access.redhat.com/errata/RHSA-2026:64463)

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._