CVE-2026-0990
5.9 · MEDIUMOverview
CVE-2026-0990 is a medium-severity vulnerability affecting redhat hardened_images. It was published on January 15, 2026 and has a CVSS 3.1 base score of 5.9 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.9, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
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.
Remediation
Check the references section for vendor advisories and patches from redhat. Update hardened_images to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| ibm | vios | >= 4.1.0, < 4.1.1.30 | Affected |
| ibm | aix | >= 7.2.5, < 7.2.5.12 | Affected |
| xmlsoft | libxml2 | >= 0, < 2.15.2 | Affected |
Frequently Asked Questions
What is CVE-2026-0990?
CVE-2026-0990 is a medium-severity vulnerability affecting redhat hardened_images. It was published on January 15, 2026 and has a CVSS 3.1 base score of 5.9 (MEDIUM).
How severe is CVE-2026-0990?
This vulnerability has a CVSS 3.1 base score of 5.9, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-0990?
Check the references section for vendor advisories and patches from redhat. Update hardened_images to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-0990?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-0990 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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