CVE-2026-0989A flaw was identified in the RelaxNG parser of libxml2 related to how external schema inclusions are handled.
Updated under an hour ago ()
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It affects xmlsoft libxml2 and 6 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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A flaw was identified in the RelaxNG parser of libxml2 related to how external schema inclusions are handled. The parser does not enforce a limit on inclusion depth when resolving nested <include> directives. Specially crafted or overly complex schemas can cause excessive recursion during parsing. This may lead to stack exhaustion and application crashes, creating a denial-of-service risk.
- CVSS
- 3.7 LOW (v3.1, NVD)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
- Weakness (CWE)
- CWE-674
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Sep 1, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
xmlsoft libxml2 xmlsoft:libxml2 | before 2.15.2 | NVD |
redhat hardened_images redhat:hardened_images | all versions | NVD |
redhat jboss_core_services redhat:jboss_core_services | all versions | NVD |
redhat openshift_container_platform redhat:openshift_container_platform | 4.0 | NVD |
redhat enterprise_linux redhat:enterprise_linux | 6.0; 7.0; 8.0; 9.0; 10.0 | NVD |
ibm vios ibm:vios | from 4.1.0 before 4.1.1.30; 4.1.2.0 | NVD |
ibm aix ibm:aix | from 7.2.5 before 7.2.5.12; from 7.3.2 before 7.3.3.3; 7.3.4 | NVD |
References
- https://access.redhat.com/errata/RHSA-2026:7519third-party-advisory
- https://access.redhat.com/security/cve/CVE-2026-0989third-party-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2429933issue-tracking, third-party-advisory
- https://gitlab.gnome.org/GNOME/libxml2/-/issues/998exploit, issue-tracking, mitigation, third-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.