CVE-2026-53795rsync < 3.5.0 Arbitrary File Write via --temp-dir/--link-dest

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.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• GitHub Security Advisory (GHSA-m9vj-637x-v6pq) vendor-advisoryVendor Advisory
• rsync 3.5.0 Release Notes release-notesProductRelease Notes
• https://www.vulncheck.com/advisories/rsync-arbitrary-file-write-via-temp-dir-link-dest third-party-advisoryRelease NotesThird Party Advisory