CVE-2026-0990

Published Jan 15, 2026

Last updated 22 days ago

CVSS medium 5.9

Overview

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.
Source
secalert@redhat.com
NVD status
Analyzed
Products
hardened_images, jboss_core_services, openshift_container_platform, enterprise_linux, vios, aix, libxml2

Risk scores

CVSS 3.1

Type
Secondary
Base score
5.9
Impact score
3.6
Exploitability score
2.2
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Severity
MEDIUM

Weaknesses

secalert@redhat.com
CWE-674

Social media

Hype score
Not currently trending

  1. 🚨 #LinuxAdvisory: #SUSE releases critical libxml2 update (2026-0570-1). Patches 5 high-impact CVEs including infinite recursion (CVE-2026-0990) and memory corruption (CVE-2025-10911). Affects: openSUSE Leap 15.5/15.6 & SLE Micro 5.5. Read more: 👉 https://t.co/791ggtt

    @Cezar_H_Linux

    18 Feb 2026

    42 Impressions

    0 Retweets

    0 Likes

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    0 Replies

    0 Quotes

Configurations

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References

Sources include official advisories and independent security research.