rsync before 3.5.0 contains a symlink following vulnerability that allows local attackers to overwrite arbitrary files by placing a symlink at a predictable output path such as --log-file, --write-batch, or daemon-mode log and statistics paths. Attackers can exploit rsync's failure to reject symlinks during ancillary file writes to redirect output to arbitrary filesystem locations, achieving local privilege escalation on installations where rsync runs with elevated privileges such as setuid or privileged daemon configurations.
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Affected Vendors & Products
References
History
Thu, 13 Aug 2026 15:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | rsync before 3.5.0 contains a symlink following vulnerability that allows local attackers to overwrite arbitrary files by placing a symlink at a predictable output path such as --log-file, --write-batch, or daemon-mode log and statistics paths. Attackers can exploit rsync's failure to reject symlinks during ancillary file writes to redirect output to arbitrary filesystem locations, achieving local privilege escalation on installations where rsync runs with elevated privileges such as setuid or privileged daemon configurations. | |
| Title | rsync < 3.5.0 Symlink Following Arbitrary File Overwrite | |
| Weaknesses | CWE-59 | |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-08-13T14:33:18.552Z
Reserved: 2026-06-10T20:14:32.829Z
Link: CVE-2026-53803
No data.
Status : Received
Published: 2026-08-13T15:19:53.020
Modified: 2026-08-13T15:19:53.020
Link: CVE-2026-53803
No data.
OpenCVE Enrichment
Updated: 2026-08-13T17:00:04Z