CVE-2026-23942

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Source
https://cve.org/CVERecord?id=CVE-2026-23942
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23942.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-23942
Aliases
Downstream
Published
2026-03-13T19:54:15.520Z
Modified
2026-03-15T21:45:09.899257Z
Severity
  • 5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
Summary
[none]
Details

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/sshsftpd.erl and program routines sshsftpd:iswithinroot/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 until OTP 28.4.1, OTP 27.3.4.9 and OTP 26.2.5.18, corresponding to ssh from 3.0.1 until 5.5.1, 5.2.11.6 and 5.1.4.14.

References

Affected packages

Git / github.com/erlang/otp

Affected ranges

Type
GIT
Repo
https://github.com/erlang/otp
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
27688a824f753d4c16371dc70e88753fb410590b
Type
GIT
Repo
https://github.com/erlang/otp
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
5ed603a1211b83b8be2d1fc06d3f3bf30c3c9759
Type
GIT
Repo
https://github.com/erlang/otp
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
9e0ac85d3485e7898e0da88a14be0ee2310a3b28

Affected versions

OTP-17.*
OTP-17.0
OTP-17.0.1
OTP-17.0.2
OTP-17.1
OTP-17.1.1
OTP-17.1.2
OTP-17.2
OTP-17.2.1
OTP-17.2.2
OTP-17.3
OTP-17.3.1
OTP-17.3.2
OTP-17.3.3
OTP-17.3.4
OTP-17.4
OTP-17.4.1
OTP-17.5
OTP-17.5.1
OTP-17.5.2
OTP-17.5.3
OTP-17.5.4
OTP-17.5.5
OTP-17.5.6
OTP-17.5.6.1
OTP-17.5.6.10
OTP-17.5.6.2
OTP-17.5.6.3
OTP-17.5.6.4
OTP-17.5.6.5
OTP-17.5.6.6
OTP-17.5.6.7
OTP-17.5.6.8
OTP-17.5.6.9
OTP-18.*
OTP-18.0
OTP-18.0-rc1
OTP-18.0-rc2
OTP-18.0.1
OTP-18.0.2
OTP-18.0.3
OTP-18.1
OTP-18.1.1
OTP-18.1.2
OTP-18.1.3
OTP-18.1.4
OTP-18.1.5
OTP-18.2
OTP-18.2.1
OTP-18.2.2
OTP-18.2.3
OTP-18.2.4
OTP-18.2.4.0.1
OTP-18.2.4.1
OTP-18.3
OTP-18.3.1
OTP-18.3.2
OTP-18.3.3
OTP-18.3.4
OTP-18.3.4.1
OTP-18.3.4.1.1
OTP-18.3.4.10
OTP-18.3.4.11
OTP-18.3.4.2
OTP-18.3.4.3
OTP-18.3.4.4
OTP-18.3.4.5
OTP-18.3.4.6
OTP-18.3.4.7
OTP-18.3.4.8
OTP-18.3.4.9
OTP-19.*
OTP-19.0
OTP-19.0-rc1
OTP-19.0-rc2
OTP-19.0.1
OTP-19.0.2
OTP-19.0.3
OTP-19.0.4
OTP-19.0.5
OTP-19.0.6
OTP-19.0.7
OTP-19.1
OTP-19.1.1
OTP-19.1.2
OTP-19.1.3
OTP-19.1.4
OTP-19.1.5
OTP-19.1.6
OTP-19.1.6.1
OTP-19.2
OTP-19.2.1
OTP-19.2.2
OTP-19.2.3
OTP-19.2.3.1
OTP-19.3
OTP-19.3.1
OTP-19.3.2
OTP-19.3.3
OTP-19.3.4
OTP-19.3.5
OTP-19.3.6
OTP-19.3.6.1
OTP-19.3.6.10
OTP-19.3.6.11
OTP-19.3.6.12
OTP-19.3.6.13
OTP-19.3.6.2
OTP-19.3.6.3
OTP-19.3.6.4
OTP-19.3.6.5
OTP-19.3.6.6
OTP-19.3.6.7
OTP-19.3.6.8
OTP-19.3.6.9
OTP-20.*
OTP-20.0
OTP-20.0-rc1
OTP-20.0-rc2
OTP-20.0.1
OTP-20.0.2
OTP-20.0.3
OTP-20.0.4
OTP-20.0.5
OTP-20.1
OTP-20.1.1
OTP-20.1.2
OTP-20.1.3
OTP-20.1.4
OTP-20.1.5
OTP-20.1.6
OTP-20.1.7
OTP-20.1.7.1
OTP-20.2
OTP-20.2.0.1
OTP-20.2.1
OTP-20.2.2
OTP-20.2.3
OTP-20.2.4
OTP-20.3
OTP-20.3.1
OTP-20.3.2
OTP-20.3.2.1
OTP-20.3.3
OTP-20.3.4
OTP-20.3.5
OTP-20.3.6
OTP-20.3.7
OTP-20.3.8
OTP-20.3.8.1
OTP-20.3.8.10
OTP-20.3.8.11
OTP-20.3.8.12
OTP-20.3.8.13
OTP-20.3.8.14
OTP-20.3.8.15
OTP-20.3.8.16
OTP-20.3.8.17
OTP-20.3.8.18
OTP-20.3.8.19
OTP-20.3.8.2
OTP-20.3.8.20
OTP-20.3.8.21
OTP-20.3.8.22
OTP-20.3.8.23
OTP-20.3.8.24
OTP-20.3.8.25
OTP-20.3.8.26
OTP-20.3.8.3
OTP-20.3.8.4
OTP-20.3.8.5
OTP-20.3.8.6
OTP-20.3.8.7
OTP-20.3.8.8
OTP-20.3.8.9
OTP-21.*
OTP-21.0
OTP-21.0-rc1
OTP-21.0-rc2
OTP-21.0.1
OTP-21.0.2
OTP-21.0.3
OTP-21.0.4
OTP-21.0.5
OTP-21.0.6
OTP-21.0.7
OTP-21.0.8
OTP-21.0.9
OTP-21.1
OTP-21.1.1
OTP-21.1.2
OTP-21.1.3
OTP-21.1.4
OTP-21.2
OTP-21.2.1
OTP-21.2.2
OTP-21.2.3
OTP-21.2.4
OTP-21.2.5
OTP-21.2.6
OTP-21.2.7
OTP-21.3
OTP-21.3.1
OTP-21.3.2
OTP-21.3.3
OTP-21.3.4
OTP-21.3.5
OTP-21.3.6
OTP-21.3.7
OTP-21.3.7.1
OTP-21.3.8
OTP-21.3.8.1
OTP-21.3.8.10
OTP-21.3.8.11
OTP-21.3.8.12
OTP-21.3.8.13
OTP-21.3.8.14
OTP-21.3.8.15
OTP-21.3.8.16
OTP-21.3.8.17
OTP-21.3.8.18
OTP-21.3.8.19
OTP-21.3.8.2
OTP-21.3.8.20
OTP-21.3.8.21
OTP-21.3.8.22
OTP-21.3.8.23
OTP-21.3.8.24
OTP-21.3.8.3
OTP-21.3.8.4
OTP-21.3.8.5
OTP-21.3.8.6
OTP-21.3.8.7
OTP-21.3.8.8
OTP-21.3.8.9
OTP-22.*
OTP-22.0
OTP-22.0-rc1
OTP-22.0-rc2
OTP-22.0-rc3
OTP-22.0.1
OTP-22.0.2
OTP-22.0.3
OTP-22.0.4
OTP-22.0.5
OTP-22.0.6
OTP-22.0.7
OTP-22.1
OTP-22.1.1
OTP-22.1.2
OTP-22.1.3
OTP-22.1.4
OTP-22.1.5
OTP-22.1.6
OTP-22.1.7
OTP-22.1.8
OTP-22.1.8.1
OTP-22.2
OTP-22.2.1
OTP-22.2.2
OTP-22.2.3
OTP-22.2.4
OTP-22.2.5
OTP-22.2.6
OTP-22.2.7
OTP-22.2.8
OTP-22.3
OTP-22.3.1
OTP-22.3.2
OTP-22.3.3
OTP-22.3.4
OTP-22.3.4.1
OTP-22.3.4.10
OTP-22.3.4.11
OTP-22.3.4.12
OTP-22.3.4.12.1
OTP-22.3.4.13
OTP-22.3.4.14
OTP-22.3.4.15
OTP-22.3.4.16
OTP-22.3.4.17
OTP-22.3.4.18
OTP-22.3.4.19
OTP-22.3.4.2
OTP-22.3.4.20
OTP-22.3.4.21
OTP-22.3.4.22
OTP-22.3.4.23
OTP-22.3.4.24
OTP-22.3.4.25
OTP-22.3.4.26
OTP-22.3.4.27
OTP-22.3.4.3
OTP-22.3.4.4
OTP-22.3.4.5
OTP-22.3.4.6
OTP-22.3.4.7
OTP-22.3.4.8
OTP-22.3.4.9
OTP-23.*
OTP-23.0
OTP-23.0-rc1
OTP-23.0-rc2
OTP-23.0-rc3
OTP-23.0.1
OTP-23.0.2
OTP-23.0.3
OTP-23.0.4
OTP-23.1
OTP-23.1.1
OTP-23.1.2
OTP-23.1.3
OTP-23.1.4
OTP-23.1.4.1
OTP-23.1.5
OTP-23.2
OTP-23.2.1
OTP-23.2.2
OTP-23.2.3
OTP-23.2.4
OTP-23.2.5
OTP-23.2.6
OTP-23.2.7
OTP-23.2.7.1
OTP-23.2.7.2
OTP-23.2.7.3
OTP-23.2.7.4
OTP-23.2.7.5
OTP-23.3
OTP-23.3.1
OTP-23.3.2
OTP-23.3.3
OTP-23.3.4
OTP-23.3.4.1
OTP-23.3.4.10
OTP-23.3.4.11
OTP-23.3.4.12
OTP-23.3.4.13
OTP-23.3.4.14
OTP-23.3.4.15
OTP-23.3.4.16
OTP-23.3.4.17
OTP-23.3.4.18
OTP-23.3.4.19
OTP-23.3.4.2
OTP-23.3.4.20
OTP-23.3.4.3
OTP-23.3.4.4
OTP-23.3.4.5
OTP-23.3.4.6
OTP-23.3.4.7
OTP-23.3.4.8
OTP-23.3.4.9
OTP-24.*
OTP-24.0
OTP-24.0-rc1
OTP-24.0-rc2
OTP-24.0-rc3
OTP-24.0.1
OTP-24.0.2
OTP-24.0.3
OTP-24.0.4
OTP-24.0.5
OTP-24.0.6
OTP-24.1
OTP-24.1.1
OTP-24.1.2
OTP-24.1.3
OTP-24.1.4
OTP-24.1.5
OTP-24.1.6
OTP-24.1.7
OTP-24.2
OTP-24.2.1
OTP-24.2.2
OTP-24.3
OTP-24.3.1
OTP-24.3.2
OTP-24.3.3
OTP-24.3.4
OTP-24.3.4.1
OTP-24.3.4.10
OTP-24.3.4.11
OTP-24.3.4.12
OTP-24.3.4.13
OTP-24.3.4.14
OTP-24.3.4.15
OTP-24.3.4.16
OTP-24.3.4.17
OTP-24.3.4.2
OTP-24.3.4.3
OTP-24.3.4.4
OTP-24.3.4.5
OTP-24.3.4.6
OTP-24.3.4.7
OTP-24.3.4.8
OTP-24.3.4.9
OTP-25.*
OTP-25.0
OTP-25.0-rc1
OTP-25.0-rc2
OTP-25.0-rc3
OTP-25.0.1
OTP-25.0.2
OTP-25.0.3
OTP-25.0.4
OTP-25.1
OTP-25.1.1
OTP-25.1.2
OTP-25.1.2.1
OTP-25.2
OTP-25.2.1
OTP-25.2.2
OTP-25.2.3
OTP-25.3
OTP-25.3.1
OTP-25.3.2
OTP-25.3.2.1
OTP-25.3.2.10
OTP-25.3.2.11
OTP-25.3.2.12
OTP-25.3.2.13
OTP-25.3.2.14
OTP-25.3.2.15
OTP-25.3.2.16
OTP-25.3.2.17
OTP-25.3.2.18
OTP-25.3.2.19
OTP-25.3.2.2
OTP-25.3.2.20
OTP-25.3.2.21
OTP-25.3.2.3
OTP-25.3.2.4
OTP-25.3.2.5
OTP-25.3.2.6
OTP-25.3.2.7
OTP-25.3.2.8
OTP-25.3.2.9
OTP-26.*
OTP-26.0
OTP-26.0-rc1
OTP-26.0-rc2
OTP-26.0-rc3
OTP-26.0.1
OTP-26.0.2
OTP-26.1
OTP-26.1.1
OTP-26.1.2
OTP-26.2
OTP-26.2.1
OTP-26.2.2
OTP-26.2.3
OTP-26.2.4
OTP-26.2.5
OTP-26.2.5.1
OTP-26.2.5.10
OTP-26.2.5.11
OTP-26.2.5.12
OTP-26.2.5.13
OTP-26.2.5.14
OTP-26.2.5.15
OTP-26.2.5.16
OTP-26.2.5.17
OTP-26.2.5.2
OTP-26.2.5.3
OTP-26.2.5.4
OTP-26.2.5.5
OTP-26.2.5.6
OTP-26.2.5.7
OTP-26.2.5.8
OTP-26.2.5.9
OTP-27.*
OTP-27.0
OTP-27.0-rc1
OTP-27.0-rc2
OTP-27.0-rc3
OTP-27.0.1
OTP-27.1
OTP-27.1.1
OTP-27.1.2
OTP-27.1.3
OTP-27.2
OTP-27.2.1
OTP-27.2.2
OTP-27.2.3
OTP-27.2.4
OTP-27.3
OTP-27.3.1
OTP-27.3.2
OTP-27.3.3
OTP-27.3.4
OTP-27.3.4.1
OTP-27.3.4.2
OTP-27.3.4.3
OTP-27.3.4.4
OTP-27.3.4.5
OTP-27.3.4.6
OTP-27.3.4.7
OTP-27.3.4.8
OTP-28.*
OTP-28.0
OTP-28.0-rc1
OTP-28.0-rc2
OTP-28.0-rc3
OTP-28.0-rc4
OTP-28.0.1
OTP-28.0.2
OTP-28.0.3
OTP-28.0.4
OTP-28.1
OTP-28.1.1
OTP-28.2
OTP-28.3
OTP-28.3.1
OTP-28.3.2
OTP-28.3.3
OTP-28.4
OTP_17.*
OTP_17.0-rc1
OTP_17.0-rc2
Other
OTP_R13B03
OTP_R13B04
OTP_R14A
OTP_R14B
OTP_R14B01
OTP_R14B02
OTP_R14B03
OTP_R14B04
OTP_R15A
OTP_R15B
OTP_R15B01
OTP_R15B02
OTP_R15B03
OTP_R15B03-1
OTP_R16A_RELEASE_CANDIDATE
OTP_R16B
OTP_R16B01
OTP_R16B01_RC1
OTP_R16B02
OTP_R16B03
OTP_R16B03-1
OTP_R16B03_yielding_binary_to_term
R16B02_yielding_binary_to_term
patch-base-24
patch-base-25
patch-base-26
patch-base-27

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23942.json"