CVE-2026-53786: rsync before 3.5.0 contains a filter rule bypass vulnerability that allows authenticated clients to override…
CVE-2026-53786 · Severity: medium · CVSS 6.5 · Published 2026-08-13
rsync before 3.5.0 contains a filter rule bypass vulnerability that allows authenticated clients to override module-level filter restrictions by supplying malicious --filter merge file directives. Attackers can inject client-side merge file directives during filter evaluation to introduce rules that supersede daemon module-level restrictions, gaining access to files the module filter was intended to exclude.
No. Junglewise Threat Intelligence has no report of CVE-2026-53786 being exploited in the wild.
How severe is CVE-2026-53786?
Medium severity, with a CVSS score of 6.5, published 13 August 2026.
Which products and versions are affected?
Samba Rsync. The advisory does not name versions.
Is there a fix for CVE-2026-53786?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2026-53786?
Check whether you run Samba Rsync. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.