LOW 2.9 Microsoft
CVE-2026-86141
xmlregexp in libxml2 before 2.15.4 has a NULL pointer dereference in xmlRegNewParserCtxt after a strdup failure, i.e., it does not calculate a string length after NULL checking.
Microsoft Security Update 2026-Sep: xmlregexp in libxml2 before 2.15.4 has a NULL pointer dereference in xmlRegNewParserCtxt after a strdup failure, i.e., it does not calculate a string length after NULL checking.
Affected Products
- azl3 libxml2 2.11.5-10 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-86141
- https://nvd.nist.gov/vuln/detail/CVE-2026-86141
This low severity vulnerability with a CVSS score of 2.9 was published on 2026-09-08 via Microsoft. Affected: azl3 libxml2 2.11.5-10 on Azure Linux 3.0.
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