MEDIUM 6.5 Microsoft

CVE-2026-53583

libgit2: Inverted IP SubjectAltName Comparison in OpenSSL Backend

Microsoft Security Update 2026-Aug: libgit2: Inverted IP SubjectAltName Comparison in OpenSSL Backend

Affected Products

azl3 rust 1.90.0-10 on Azure Linux 3.0
azl3 libgit2 1.7.2-1 on Azure Linux 3.0
azl3 rust 1.75.0-30 on Azure Linux 3.0

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-53583
https://nvd.nist.gov/vuln/detail/CVE-2026-53583

Published: 2026-08-11 · Source: Microsoft · Feed updated: 2026-10-04

This medium severity vulnerability with a CVSS score of 6.5 was published on 2026-08-11 via Microsoft. Affected: azl3 rust 1.90.0-10 on Azure Linux 3.0, azl3 libgit2 1.7.2-1 on Azure Linux 3.0, azl3 rust 1.75.0-30 on Azure Linux 3.0.

vulnfeed aggregates 10524 vulnerabilities from NVD, CISA KEV, Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.