LOW 2.9 Microsoft
CVE-2026-41080
libexpat before 2.8.0 uses insufficient entropy, and thus hash flooding can occur via a crafted XML document.
Microsoft Security Update 2026-Apr: libexpat before 2.8.0 uses insufficient entropy, and thus hash flooding can occur via a crafted XML document.
Affected Products
- cbl2 expat 2.6.4-4 on CBL Mariner 2.0
- azl3 expat 2.6.4-5 on Azure Linux 3.0
- azl3 expat 2.6.4-6 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41080
- https://nvd.nist.gov/vuln/detail/CVE-2026-41080
This low severity vulnerability with a CVSS score of 2.9 was published on 2026-04-14 via Microsoft. Affected: cbl2 expat 2.6.4-4 on CBL Mariner 2.0, azl3 expat 2.6.4-5 on Azure Linux 3.0, azl3 expat 2.6.4-6 on Azure Linux 3.0.
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