Vulnerability Description
rsync before 3.5.0 contains a symlink race condition vulnerability in the sender's directory scanning logic that allows attackers to cause the sender to enumerate and transfer files outside the module root's intended subtree. Attackers who can create or manipulate symlinks in a path component of the scanned tree can replace a symlink with a directory entry pointing outside the module root between the lstat() call and the subsequent opendir() call, exposing files beyond the intended root in both daemon-mode and non-daemon sender-side scanning.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Samba | Rsync | < 3.5.0 |
Related Weaknesses (CWE)
References
- https://github.com/RsyncProject/rsync/releases/tag/v3.5.0ProductRelease Notes
- https://github.com/RsyncProject/rsync/security/advisories/GHSA-mch3-qr4p-chgmVendor Advisory
- https://www.vulncheck.com/advisories/rsync-symlink-race-condition-directory-travRelease NotesThird Party Advisory
FAQ
What is CVE-2026-53801?
CVE-2026-53801 is a vulnerability with a CVSS score of 5.9 (MEDIUM). rsync before 3.5.0 contains a symlink race condition vulnerability in the sender's directory scanning logic that allows attackers to cause the sender to enumerate and transfer files outside the module...
How severe is CVE-2026-53801?
CVE-2026-53801 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-53801?
Check the references section above for vendor advisories and patch information. Affected products include: Samba Rsync.