LOW 3.7 Microsoft
CVE-2026-0989
Libxml2: unbounded relaxng include recursion leading to stack overflow
Microsoft Security Update 2026-Aug: Libxml2: unbounded relaxng include recursion leading to stack overflow
Affected Products
- cbl2 libxml2 2.10.4-9 on CBL Mariner 2.0
- azl3 libxml2 2.11.5-8 on Azure Linux 3.0
- cbl2 libxml2 2.10.4-10 on CBL Mariner 2.0
- azl3 libxml2 2.11.5-9 on Azure Linux 3.0
- cbl2 libxml2 2.10.4-11
- azl3 libxml2 2.11.5-7 on Azure Linux 3.0
- cbl2 libxml2 2.10.4-11 on CBL Mariner 2.0
- azl3 libxml2 2.11.5-10 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-0989
- https://nvd.nist.gov/vuln/detail/CVE-2026-0989
This low severity vulnerability with a CVSS score of 3.7 was published on 2026-08-06 via Microsoft. Affected: cbl2 libxml2 2.10.4-9 on CBL Mariner 2.0, azl3 libxml2 2.11.5-8 on Azure Linux 3.0, cbl2 libxml2 2.10.4-10 on CBL Mariner 2.0 and 5 more.
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