medium5.9
CVE-2026-0990
A flaw was found in libxml2, an XML parsing library.
Impact
A flaw was found in libxml2, an XML parsing library. This uncontrolled recursion vulnerability occurs in the xmlCatalogXMLResolveURI function when an XML catalog contains a delegate URI entry that references itself. A remote attacker could exploit this configuration-dependent issue by providing a specially crafted XML catalog, leading to infinite recursion and call stack exhaustion. This ultimately results in a segmentation fault, causing a Denial of Service (DoS) by crashing affected applications.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Redhat | Hardened Images | All versions |
| Redhat | Jboss Core Services | All versions |
| Redhat | Openshift Container Platform | Version 4.0 |
| Redhat | Enterprise Linux | Versions 6.0, 7.0, 8.0, 9.0, 10.0 |
| Ibm | Vios | from 4.1.0 before 4.1.1.30 Version 4.1.2.0 |
| Ibm | Aix | from 7.2.5 before 7.2.5.12 from 7.3.2 before 7.3.3.3 Version 7.3.4 |
| Xmlsoft | Libxml2 | before 2.15.2 |