CVE-2026-70460

rsync 2.3.3 < 3.5.0 Path Traversal via --partial-dir/--backup-dir Symlink

State
Published
Severity
9.2 Critical
Published
Aug 13, 2026
Updated
Aug 14, 2026
Reserved
Aug 4, 2026

Read the record on cve.org

Description

rsync 2.3.3 before 3.5.0 contains a path traversal vulnerability that allows a malicious sender to escape the module root by exploiting symlinks within the module file tree when using --partial-dir or --backup-dir options. Attackers with write access to place a symlink under the module root, or who can exploit a pre-existing trusted symlink, can direct file writes to locations outside the intended module root, achieving arbitrary file write relative to the module root parent.

Scores

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

Weaknesses

  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
  • CWE-59 Improper Link Resolution Before File Access ('Link Following')

Affected Products

ProductVersions
rsyncRsyncProject
  • 2.3.3 through 3.4.4Affected
  • 3.5.0Not affected

References

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