OESA-2026-3041 erlang security update

Erlang is a general-purpose programming language and runtime environment. Erlang has built-in support for concurrency, distribution and fault tolerance. Erlang is used in several large telecommunication systems from Ericsson. Security Fixes: Exposure of Sensitive Information to an Unauthorized...

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...

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...

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...

EEF-CVE-2026-23942 SFTP root escape via component-agnostic prefix check in ssh_sftpd

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

CVE-2026-23942 SFTP root escape via component-agnostic prefix check in ssh_sftpd

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...

EUVD-2026-11778

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...

CVE-2026-23942

CVE-2026-23942 is a path traversal vulnerability in the Erlang OTP ssh_sftpd module. The SFTP server uses a prefix-based check instead of proper path validation, allowing an authenticated user to access sibling directories that share prefixes with the configured root (e.g., root /home/user1 and p...

CVE-2025-48041

CVE-2025-48041 is an Erlang/OTP issue in the SSH sftp path (ssh_sftpd.erl) causing Allocation of Resources Without Limits or Throttling. Affected are OTP forms up to 28.0.3 (and related SSH from 3.0.1 to 5.3.3, 5.2.11.3, 5.1.4.12). The vulnerability enables excessive resource allocation and relat...

CVE-2025-48040

CVE-2025-48040 describes an uncontrolled resource consumption in Erlang OTP ssh (ssh_sftp) due to excessive data handling. Affected ranges include OTP 17.0–28.0.3, OTP 27.3.4.3 and 26.2.5.15 (ssh from 3.0.1–5.3.3, 5.2.11.3, 5.1.4.12). Exploitation details are not provided in the available documen...

EEF-CVE-2025-48040 Malicious Key Exchange Messages may Lead to Excessive Resource Consumption

Summary Uncontrolled Resource Consumption vulnerability in Erlang OTP ssh ssh\sftp modules allows Excessive Allocation, Flooding. This vulnerability is associated with program files lib/ssh/src/ssh\sftpd.erl. This issue affects OTP from OTP 17.0 before OTP 28.0.3, OTP 27.3.4.3 and OTP 26.2.5.15,...