CVE-2025-59343: Mafintosh Tar-Fs

High severity, CVSS 8.7. EPSS: 0.6% chance of exploitation in the next 30 days.

tar-fs provides filesystem bindings for tar-stream. Versions prior to 3.1.1, 2.1.3, and 1.16.5 are vulnerable to symlink validation bypass if the destination directory is predictable with a specific tarball. This issue has been patched in version 3.1.1, 2.1.4, and 1.16.6. A workaround involves using the ignore option on non files/directories.

Affected products

• Mafintosh Tar-Fs: from 3.0.0, before 3.1.1 (fixed in 3.1.1); from 2.0.0, before 2.1.3 (fixed in 2.1.3); before 1.16.5 (fixed in 1.16.5)

Published 2025-09-24. Last modified 2026-06-17.