Protection mechanism failure in OpenSSH - CVE-2026-60001

Vulnerability identifier: #VU137703

CSH Severity: Medium

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-60001

CWE-ID: CWE-693

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to weaken authentication rate limiting.

The vulnerability exists due to improper enforcement of security policy in sshd(8) when handling authentication attempts. A remote attacker can send authentication attempts to weaken authentication rate limiting.

The issue affects cases where the minimum authentication delay was not enforced.

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

Install security update from vendor's website.

OpenSSH - update to 10.4p1
pam_ssh_agent_auth - addressed in versions 0.10.3-9.42, 0.10.4-4.48, 0.10.4-5.19, 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-debuginfo - addressed in versions 8.2p1-42, 8.8p1-48, 9.6p1-19, 9.6p1-22
openssh-debugsource - addressed in versions 8.2p1-42, 8.8p1-48, 9.6p1-19, 9.6p1-22
openssh-keycat - addressed in versions 8.2p1-42, 8.8p1-48, 9.6p1-19, 9.6p1-22
openssh-ldap - update to 8.2p1-42
openssh-server - addressed in versions 8.2p1-42, 8.8p1-48, 9.6p1-19, 9.6p1-22
openssh-clients - addressed in versions 8.2p1-42, 8.8p1-48, 9.6p1-19, 9.6p1-22
openssh-help - addressed in versions 8.2p1-42, 8.8p1-48, 9.6p1-19, 9.6p1-22
openssh-cavs - update to 8.2p1-42
openssh-askpass - addressed in versions 8.2p1-42, 8.8p1-48, 9.6p1-19, 9.6p1-22
openssh - addressed in versions 8.2p1-42, 8.8p1-48, 9.6p1-19, 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-common - update to 9.6p1-150600.6.49.1
openssh-debuginfo - update to 9.6p1-150600.6.49.1
openssh-debugsource - update to 9.6p1-150600.6.49.1
openssh-helpers-debuginfo - update to 9.6p1-150600.6.49.1
openssh-server - update to 9.6p1-150600.6.49.1
openssh-server-config-disallow-rootlogin - update to 9.6p1-150600.6.49.1
openssh-fips - update to 9.6p1-150600.6.49.1
openssh-clients-debuginfo - update to 9.6p1-150600.6.49.1
openssh-helpers - update to 9.6p1-150600.6.49.1
openssh-clients - update to 9.6p1-150600.6.49.1
openssh-common-debuginfo - update to 9.6p1-150600.6.49.1
openssh-server-debuginfo - update to 9.6p1-150600.6.49.1
openssh - update to 9.6p1-150600.6.49.1
openssh-askpass-gnome-debuginfo - update to 9.6p1-150600.6.49.1
openssh-askpass-gnome - update to 9.6p1-150600.6.49.1
openssh-askpass-gnome-debugsource - update to 9.6p1-150600.6.49.1
openssh-cavs - update to 9.6p1-150600.6.49.1
openssh-cavs-debuginfo - update to 9.6p1-150600.6.49.1
openssh (Red Hat package) - addressed in versions 9.9p1-12.el9_8, 9.9p1-28.el10_2

• https://www.openssh.org/releasenotes.html#10.4p1

• Multiple vulnerabilities in OpenSSH
• Ubuntu update for openssh
• Anolis OS update for openssh
• SUSE update for openssh
• openEuler 24.03 LTS SP3 update for openssh
• openEuler 24.03 LTS SP1 update for openssh
• openEuler 22.03 LTS SP4 update for openssh
• openEuler 20.03 LTS SP4 update for openssh
• openEuler 24.03 LTS SP4 update for openssh
• Multiple vulnerabilities in IBM i
• Ubuntu update for openssh
• Red Hat Enterprise Linux 10 update for openssh
• Red Hat Enterprise Linux 9 update for openssh