CVE-2026-53795

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

State
Published
Severity
7.2 High
Published
Aug 13, 2026
Updated
Aug 14, 2026
Reserved
Jun 10, 2026

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
4.07.2 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:NVulnCheck
3.18.1 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:HVulnCheck

Weaknesses

  • CWE-59 Improper Link Resolution Before File Access ('Link Following')

Affected Products

ProductVersions
rsyncRsyncProject
  • 3.4.4 and earlierAffected
  • 3.5.0Not affected

References

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