Description
rsync before 3.5.0 contains a path traversal vulnerability that allows remote clients to access files outside the intended module root when use chroot is disabled and the module root path or a component of it is a symlink. The daemon calls chdir() to the module root at session initialization without resolving symlinks via realpath() or equivalent, causing subsequent relative-path operations to reference files relative to the symlink target rather than the intended module root, enabling unauthorized file access.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| RsyncProject | rsync | <= 3.4.4 |
References
- https://github.com/RsyncProject/rsync/releases/tag/v3.5.0Product, Release Notes
- https://github.com/RsyncProject/rsync/security/advisories/GHSA-ffg2-fr5g-3rxwVendor Advisory
- https://www.vulncheck.com/advisories/rsync-path-traversal-via-symlink-module-rootRelease Notes, Third Party Advisory
Timeline
- Published
- Aug 13, 2026
- Last modified
- Oct 24, 2026
- NVD status
- Analyzed