CVE-2026-53783 rsync < 3.5.0 TOCTOU Race Condition Directory Escape via rrsync

rsync before 3.5.0 contains a time-of-check to time-of-use TOCTOU race condition vulnerability in the rrsync restricted shell wrapper that allows authenticated clients to escape enforced directory restrictions by substituting a symlink for a path component after validation but before transfer...

CVE-2026-53783

This CVE affects rsync prior to 3.5.0, where a TOCTOU race in the rrsync restricted shell wrapper lets an authenticated client bypass directory checks by substituting a symlink after validation but before transfer processing. Attackers can use unrestricted flags like --copy-unsafe-links, -D, and ...

EUVD-2026-58090

rsync before 3.5.0 contains a time-of-check to time-of-use TOCTOU race condition vulnerability in the rrsync restricted shell wrapper that allows authenticated clients to escape enforced directory restrictions by substituting a symlink for a path component after validation but before transfer...

PT-2026-71622

rsync before 3.5.0 contains a time-of-check to time-of-use TOCTOU race condition vulnerability in the rrsync restricted shell wrapper that allows authenticated clients to escape enforced directory restrictions by substituting a symlink for a path component after validation but before transfer...