VDB
CVE-2026-74860
CVE-2026-74860
PUBLISHED
CVSS 8.5 HIGH
Reported by redhat · Published September 8, 2026
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.
Risk Scores
CVSS 3.1
8.5
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | Red Hat Hardened Images | 2.15.4-0.1.hum1 |
| Red Hat | Red Hat Enterprise Linux 10 | |
| Red Hat | Red Hat Enterprise Linux 10 | |
| Red Hat | Red Hat Enterprise Linux 6 | |
| Red Hat | Red Hat Enterprise Linux 7 | |
| Red Hat | Red Hat Enterprise Linux 8 | |
| Red Hat | Red Hat Enterprise Linux 8 | |
| Red Hat | Red Hat Enterprise Linux 9 | |
| Red Hat | Red Hat Enterprise Linux 9 | |
| Red Hat | Red Hat Hardened Images | |
| Red Hat | Red Hat OpenShift Container Platform 4 | |
| Red Hat | Red Hat OpenShift Container Platform 4 | |
| Red Hat | Red Hat OpenShift Container Platform 4 | |
| Red Hat | Red Hat Enterprise Linux 6 | |
| Red Hat | Red Hat Enterprise Linux 7 | |
| Red Hat | Red Hat Enterprise Linux 9 | |
| Red Hat | Red Hat Hardened Images | |
| Red Hat | Red Hat OpenShift Container Platform 4 | |
| Red Hat | Red Hat Enterprise Linux 8 | |
| Red Hat | Red Hat OpenShift Container Platform 4 |
…and 7 more
Timeline
- Sep 8, 2026 CVE Published
- Sep 9, 2026 EPSS Score
- Sep 10, 2026 EPSS Score
- Sep 10, 2026 CVE Updated
- Sep 11, 2026 Distribution Patch
- Sep 11, 2026 Security Advisory
- Sep 12, 2026 EPSS Score
- Sep 16, 2026 EPSS Score
- Sep 18, 2026 EPSS Score
References
- RHSA-2026:64463 vendor-advisoryx_refsource_REDHAT
- vdb-entryx_refsource_REDHAT
- RHBZ#2529697 issue-trackingx_refsource_REDHAT