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Aix CVE-2026-0990

MEDIUM
Uncontrolled Recursion (CWE-674)
2026-01-15 secalert@redhat.com
5.9
CVSS 3.1 · Vendor: redhat
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Severity by source

Vendor (redhat) PRIMARY
5.9 MEDIUM
AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
SUSE
MEDIUM
qualitative
Red Hat
5.9 MEDIUM
qualitative

Primary rating from Vendor (redhat).

CVSS VectorVendor: redhat

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

3
Patch released
Apr 09, 2026 - 14:30 nvd
Patch available
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
CVE Published
Jan 15, 2026 - 15:15 nvd
MEDIUM 5.9

DescriptionCVE.org

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.

AnalysisAI

libxml2's xmlCatalogXMLResolveURI function is vulnerable to uncontrolled recursion when processing self-referencing delegate URI entries in XML catalogs, allowing remote attackers to trigger stack exhaustion and crash applications. This configuration-dependent denial of service requires specially crafted XML input but no authentication, affecting any application using the vulnerable library to parse untrusted catalogs. No patch is currently available.

Technical ContextAI

Classified as CWE-674 (Uncontrolled Recursion). 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 applicatio

RemediationAI

Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.

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Vendor StatusVendor

SUSE

Severity: Medium
Product Status
Container private-registry/harbor-portal:1.1.1-1.29 Container suse/multi-linux-manager/5.1/x86_64/proxy-httpd:5.1.2.8.15.2 Container suse/multi-linux-manager/5.1/x86_64/proxy-salt-broker:5.1.2.9.13.2 Container suse/multi-linux-manager/5.1/x86_64/proxy-squid:5.1.2.8.13.1 Container suse/multi-linux-manager/5.1/x86_64/server-migration-14-16:5.1.2.8.13.1 Container suse/multi-linux-manager/5.1/x86_64/server-postgresql:5.1.2.6.13.1 Container suse/multi-linux-manager/5.1/x86_64/server-saline:5.1.2.9.13.1 Image SLES15-SP7-CHOST-BYOS-Aliyun Image SLES15-SP7-CHOST-BYOS-Azure Image SLES15-SP7-CHOST-BYOS-EC2 Image SLES15-SP7-CHOST-BYOS-GCE Image SLES15-SP7-CHOST-BYOS-GDC Image SLES15-SP7-CHOST-BYOS-SAP-CCloud Image SLES15-SP7-GCE-3P Image SLES15-SP7-HPC-BYOS-EC2 Image proxy-httpd-image Image proxy-salt-broker-image Image proxy-squid-image Image server-database-migration-image Image server-image Image server-postgresql-image Image server-saline-image Affected
Container suse/ltss/sle12.5/sles12sp5:8.5.205 Affected
Container suse/manager/4.3/proxy-httpd:4.3.16.2.9.73.16 Affected
Container suse/manager/5.0/x86_64/proxy-httpd:latest Affected
Container suse/manager/5.0/x86_64/server:latest Affected

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CVE-2026-0990 vulnerability details – vuln.today

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