Path traversal in OpenSSH - CVE-2026-59995

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Main Vulnerability Database Vulnerabilities #VU137698

Path traversal in OpenSSH - CVE-2026-59995

Published: July 15, 2026


Vulnerability identifier: #VU137698
CSH Severity: Low
CVSS v4: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-59995
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to write files to an unexpected location.

The vulnerability exists due to improper path restriction in sftp(1) when downloading files on the command line using a remote path and a local dot destination. A remote attacker can operate a malicious server to write files to an unexpected location.



Affected software

OpenSSH
SUSE Linux Enterprise Server 15 SP6
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Real Time 15
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
Ubuntu
Desktop Applications Module
Basesystem Module
openSUSE Leap
openEuler
Anolis OS
Fedora
pam_ssh_agent_auth
openssh (Ubuntu package)
openssh (Red Hat package)
openssh
openssh-askpass
openssh-cavs
openssh-clients
openssh-debuginfo
openssh-debugsource
openssh-keycat
openssh-ldap
openssh-server
openssh-help
openssh-doc
openssh-sk-dummy
openssh-helpers
openssh-cavs-debuginfo
openssh-askpass-gnome-debugsource
openssh-askpass-gnome
openssh-askpass-gnome-debuginfo
openssh-server-debuginfo
openssh-common-debuginfo
openssh-server-config-disallow-rootlogin
openssh-clients-debuginfo
openssh-fips
openssh-common
openssh-helpers-debuginfo

How to mitigate CVE-2026-59995

Install security update from vendor's website.

OpenSSH - update to 10.4p1
pam_ssh_agent_auth - addressed in versions 0.10.3-9.39, 0.10.4-4.46, 0.10.4-5.17, 0.10.4-5.22
openssh (Ubuntu package) - addressed in versions 1:6.6p1-2ubuntu2.13+esm4, 1:7.2p2-4ubuntu2.10+esm10, 1:7.6p1-4ubuntu0.7+esm6, 1:8.2p1-4ubuntu0.13+esm3, 1:8.9p1-3ubuntu0.16, 1:9.6p1-3ubuntu13.18, 1:10.2p1-2ubuntu3.4
openssh (Red Hat package) - addressed in versions 8.0p1-33.el8_10, 9.9p1-27.el10_2
openssh - addressed in versions 8.2p1-39, 8.8p1-46, 9.6p1-17, 9.6p1-22
openssh-askpass - addressed in versions 8.2p1-39, 8.8p1-46, 9.6p1-17, 9.6p1-22
openssh-cavs - update to 8.2p1-39
openssh-clients - addressed in versions 8.2p1-39, 8.8p1-46, 9.6p1-17, 9.6p1-22
openssh-debuginfo - addressed in versions 8.2p1-39, 8.8p1-46, 9.6p1-17, 9.6p1-22
openssh-debugsource - addressed in versions 8.2p1-39, 8.8p1-46, 9.6p1-17, 9.6p1-22
openssh-keycat - addressed in versions 8.2p1-39, 8.8p1-46, 9.6p1-17, 9.6p1-22
openssh-ldap - update to 8.2p1-39
openssh-server - addressed in versions 8.2p1-39, 8.8p1-46, 9.6p1-17, 9.6p1-22
openssh-help - addressed in versions 8.2p1-39, 8.8p1-46, 9.6p1-17, 9.6p1-22
openssh-doc - update to 9.6p1-11
openssh-sk-dummy - update to 9.6p1-11
openssh-server - update to 9.6p1-11
openssh-keycat - update to 9.6p1-11
openssh-clients - update to 9.6p1-11
openssh-askpass - update to 9.6p1-11
openssh - update to 9.6p1-11
openssh-helpers - update to 9.6p1-150600.6.49.1
openssh-server - update to 9.6p1-150600.6.49.1
openssh-debugsource - update to 9.6p1-150600.6.49.1
openssh-cavs-debuginfo - update to 9.6p1-150600.6.49.1
openssh-cavs - update to 9.6p1-150600.6.49.1
openssh-askpass-gnome-debugsource - update to 9.6p1-150600.6.49.1
openssh-askpass-gnome - update to 9.6p1-150600.6.49.1
openssh-askpass-gnome-debuginfo - update to 9.6p1-150600.6.49.1
openssh - update to 9.6p1-150600.6.49.1
openssh-server-debuginfo - update to 9.6p1-150600.6.49.1
openssh-common-debuginfo - update to 9.6p1-150600.6.49.1
openssh-server-config-disallow-rootlogin - update to 9.6p1-150600.6.49.1
openssh-clients - update to 9.6p1-150600.6.49.1
openssh-clients-debuginfo - update to 9.6p1-150600.6.49.1
openssh-fips - update to 9.6p1-150600.6.49.1
openssh-common - update to 9.6p1-150600.6.49.1
openssh-debuginfo - update to 9.6p1-150600.6.49.1
openssh-helpers-debuginfo - update to 9.6p1-150600.6.49.1
openssh - addressed in versions 10.0p1-12.fc43, 10.2p1-14.fc44

External References

Related Security Bulletins