Vulnerability in ProFTPD Project ProFTPD

[ Description ]Official description

ProFTPD through 1.3.9e and 1.3.10rc1 through 1.3.10rc4 contains a link-following vulnerability in mod_copy that allows authenticated FTP users to bypass Limit WRITE restrictions via symlinks. Attackers can place a symlink in a writable directory and use SITE COPY or SITE CPTO to overwrite files in write-denied locations.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• BSI CERT-Bund29 Oct 2026WID-SEC-2026-4259

  ProFTPD: Multiple vulnerabilities allow file manipulation Translated from German

  CVE-2026-119147CVE-2026-119364

[ References ]References

• abraxaslabs.tech/research/proftpd-site-copy-dest-follow
• github.com/proftpd/proftpd
• github.com/proftpd/proftpd/blob/v1.3.9e/contrib/mod_copy.c
• github.com/proftpd/proftpd/commit/c41691f8981f98081fcb8a535c3c21b06a3f04af
• github.com/proftpd/proftpd/issues/2374
• github.com/proftpd/proftpd/releases/tag/v1.3.10rc5
• www.vulncheck.com/advisories/proftpd-through-1.3-9e-and-1.3-10rc4-mod-copy-symlink-foll…