CVE-2026-53800 PUBLISHED

rsync < 3.5.0 Symlink Race Condition via --remove-source-files

Assigner: VulnCheck
Reserved: 10.06.2026 Published: 13.08.2026 Updated: 13.08.2026

rsync before 3.5.0 contains a symlink race condition vulnerability in the --remove-source-files feature that allows attackers with symlink creation access to cause arbitrary file deletion. Attackers can atomically substitute a symlink for a source file between transfer completion and the unlink() call, causing rsync to delete the symlink target rather than the intended source file.

Metrics

CVSS Vector: CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CVSS Score: 5.7

Product Status

Vendor RsyncProject
Product rsync
Versions Default: unaffected
  • affected from 0 to 3.4.4 (incl.)
  • Version 3.5.0 is unaffected

Credits

  • fcasal finder

References

Problem Types

  • CWE-59 Improper Link Resolution Before File Access ('Link Following') CWE
  • CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition CWE