Vulnerability Description
rsync before 3.5.0 contains an improper path handling vulnerability that allows a malicious sender to expand the scope of --delete operations beyond the intended destination subtree by sending a crafted file list that causes rsync to reclassify implied parent directory entries or treat synthetic paths as the transfer root. Attackers can exploit multiple variants including implied parent reclassification, synthetic root path construction, legacy protocol behavior below version 30, and non-directory root handling to cause the receiver to delete files outside the authorized destination directory.
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-fxwg-7hmf-xh5qVendor Advisory
- https://www.vulncheck.com/advisories/rsync-arbitrary-file-deletion-via-maliciousRelease NotesThird Party Advisory
FAQ
What is CVE-2026-53789?
CVE-2026-53789 is a vulnerability with a CVSS score of 6.5 (MEDIUM). rsync before 3.5.0 contains an improper path handling vulnerability that allows a malicious sender to expand the scope of --delete operations beyond the intended destination subtree by sending a craft...
How severe is CVE-2026-53789?
CVE-2026-53789 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-53789?
Check the references section above for vendor advisories and patch information. Affected products include: Samba Rsync.