Microsoft security update for CVE-2026-0989
🔗 CVE IDs covered (1)
📋 Microsoft's advisory
EchelonGraph does not copy Microsoft's advisory page: its FAQ and remediation text are not shown here. Read the advisory on https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-0989. This page also shows what EchelonGraph holds for CVE-2026-0989, with the description from its CVE record, which the CVE Numbering Authority that assigned the CVE wrote: for a CVE Microsoft assigned, often in the words of Microsoft's own advisory.
🎯 Affected products9
- azl3 libxml2 2.11.5-10 on Azure Linux 3.0
- azl3 libxml2 2.11.5-7 on Azure Linux 3.0
- azl3 libxml2 2.11.5-8 on Azure Linux 3.0
- azl3 libxml2 2.11.5-9 on Azure Linux 3.0
- cbl2 libxml2 2.10.4-10 on CBL Mariner 2.0
- cbl2 libxml2 2.10.4-11
- cbl2 libxml2 2.10.4-11 on CBL Mariner 2.0
- cbl2 libxml2 2.10.4-11 on CBL-Mariner 2.0
- cbl2 libxml2 2.10.4-9 on CBL Mariner 2.0
✅ Updates Microsoft lists: 2 updates
2 rows: one per KB article or update, update type and fixed build. Their details are on Microsoft's advisory.
| KB article | Update | Fixed build |
|---|---|---|
| — | Security Update | 2.11.5-10 |
| — | Security Update | — |
🧭 EchelonGraph on CVE-2026-0989
- EchelonGraph score
- 3.7 LOW
- CISA KEV
- Not listed
- Fix status
- A fix is available — apply it.
Description from the CVE record (CVE.org), as published by its numbering authority
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.
Published by Red Hat, Inc., the CVE Numbering Authority that assigned CVE-2026-0989, in its CVE record at CVE.org; reused under the CVE Program's Terms of Use (its licence and MITRE's copyright notice are in our Terms of Service).