Vulnerability in ProFTPD Project ProFTPD

[ Description ]Official description

ProFTPD before 1.3.9e and 1.3.10rc5 contains an authorization bypass in the mod_sftp copy-file extension handler that skips Limit WRITE checks for new destination files. Authenticated SFTP users can copy any readable file to a new path in write-denied directories, creating files where uploads are forbidden.

[ 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-sftp-copy-file-write
• github.com/proftpd/proftpd
• github.com/proftpd/proftpd/blob/v1.3.9d/contrib/mod_sftp/fxp.c
• github.com/proftpd/proftpd/commit/b7d3de4565ae448a510feecd17b41923e44bfe16
• github.com/proftpd/proftpd/releases/tag/v1.3.10rc5
• github.com/proftpd/proftpd/releases/tag/v1.3.9e
• www.vulncheck.com/advisories/proftpd-before-1.3-9e-and-1.3-10rc5-mod-sftp-copy-file-aut…