GHSA-RJRW-MJQ6-HPMM goshs SFTP authentication bypass via empty password (incomplete fix of CVE-2026-40884)

Summary Start goshs v2.1.3 with -b 'admin:' -sftp. No -fkf. SFTP accepts connections without password. CVE-2026-40884 blocks the empty-username variant -b ':pass'. The empty-password variant bypasses that fix. CVE-2026-40884 CVE-2026-40884 GHSA-c29w-qq4m-2gcv, Apr 13 2026 reported the...

goshs SFTP authentication bypass via empty password (incomplete fix of CVE-2026-40884)

Summary Start goshs v2.1.3 with -b 'admin:' -sftp. No -fkf. SFTP accepts connections without password. CVE-2026-40884 blocks the empty-username variant -b ':pass'. The empty-password variant bypasses that fix. CVE-2026-40884 CVE-2026-40884 GHSA-c29w-qq4m-2gcv, Apr 13 2026 reported the...