CVE-2026-53795

Description

rsync before 3.5.0 contains an arbitrary file write vulnerability that allows attackers to write files outside the intended destination tree by specifying an absolute path via --temp-dir or --link-dest options. The rename-confinement logic is bypassed when these options resolve to paths outside the destination tree, enabling attacker-controlled values to write files to arbitrary locations accessible to the rsync process.

References

https://www.vulncheck.com/advisories/rsync-arbitrary-file-write-via-temp-dir-link-dest

https://github.com/RsyncProject/rsync/security/advisories/GHSA-m9vj-637x-v6pq

https://github.com/RsyncProject/rsync/releases/tag/v3.5.0

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4