CVE-2026-53786
Medium
Description
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.
SeverityMedium
CVSS6.5
Exploit probability—
ProductSamba Rsync
PublishedAug 13, 2026
First seenAug 13, 2026
Weakness typeCWE-863Incorrect authorization
How to fix
Update
- samba rsync3.5.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| samba rsync | v < 3.5.0 | 3.5.0 |
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