CVE-2026-23942 Affecting erlang package, versions <23.3.4.19-150300.3.32.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.36% (28th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-SLES157-ERLANG-16478742
  • published7 May 2026
  • disclosed6 May 2026

Introduced: 6 May 2026

CVE-2026-23942  (opens in a new tab)

How to fix?

Upgrade SLES:15.7 erlang to version 23.3.4.19-150300.3.32.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream erlang package and not the erlang package as distributed by SLES. See How to fix? for SLES:15.7 relevant fixed versions and status.

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 uses string prefix matching via lists:prefix/2 rather than proper path component validation when checking if a path is within the configured root directory. This allows authenticated users to access sibling directories that share a common name prefix with the configured root directory. For example, if root is set to /home/user1, paths like /home/user10 or /home/user1_backup would incorrectly be considered within the root.

This issue affects OTP from OTP 17.0 before OTP 28.4.1, OTP 27.3.4.9 and OTP 26.2.5.18, corresponding to ssh from 3.0.1 before 5.5.1, 5.2.11.6 and 5.1.4.14.

CVSS Base Scores

version 3.1