CVE-2026-53422 SFTP REALPATH path-existence oracle allowing filesystem enumeration outside configured root

Observable Response Discrepancy vulnerability in Erlang OTP ssh sshsftpd module allows an authenticated SFTP user to enumerate the existence of files and directories outside the configured root directory. The SSHFXPREALPATH handler in sshsftpd calls relatefilename/3 with Canonicalize=false, unlik...

CVE-2026-48855 SFTP READLINK Leaks Absolute Backend Filesystem Path When Root Is Configured

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Erlang OTP ssh sshsftpd module allows File Discovery. The SSHFXPREADLINK handler in sshsftpd sends the raw result of file:readlink/2 to the client without calling chrootfilename/2 to strip the backend root prefix. An...

PT-2026-48463

Name of the Vulnerable Software and Affected Versions Erlang OTP versions 17.0 through 29.0.1 Erlang OTP versions prior to 28.5.0.2 Erlang OTP versions prior to 27.3.4.13 Description An issue in the ssh sftpd module allows for file discovery through the exposure of sensitive information. The SSH...

UBUNTU-CVE-2026-23942

Improper Limitation of a Pathname to a Restricted Directory 'Path Traversal' vulnerability in Erlang OTP sshsftpd module allows Path Traversal. This vulnerability is associated with program files lib/ssh/src/sshsftpd.erl and program routines sshsftpd:iswithinroot/2. The SFTP server uses string...