MEDIUM 4.8 Microsoft

CVE-2026-43617

Rsync < 3.4.3 Authorization Bypass via Hostname Resolution

Microsoft Security Update 2026-May: Rsync < 3.4.3 Authorization Bypass via Hostname Resolution

Affected Products

azl3 rsync 3.4.1-2 on Azure Linux 3.0

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-43617
https://nvd.nist.gov/vuln/detail/CVE-2026-43617

Published: 2026-05-12 · Source: Microsoft · Feed updated: 2026-08-04

This medium severity vulnerability with a CVSS score of 4.8 was published on 2026-05-12 via Microsoft. Affected: azl3 rsync 3.4.1-2 on Azure Linux 3.0.

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