Vulnerability in Ibm Aix

CVE-2026-0990

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…

EPSS: 0.007 (49.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-0990?
CVE-2026-0990 is a medium-severity vulnerability in Ibm Aix, classified under Uncontrolled Recursion. CVSS score: 5.9/10. Published 2026-01-15.
How severe is CVE-2026-0990?
Medium severity. CVSS v3 base score is 5.9 out of 10.