CVE-2026-60002

EUVD-2026-42146
ssh in OpenSSH before 10.4 can have a use-after-free when a server changes its host key during a key re-exchange. (This outcome occurs only on the client side.)
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.7 HIGH
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: 22.7%
Affected Products (NVD)
VendorProductVersion
openbsdopenssh
𝑥
< 10.4
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
openssh
bookworm
postponed
bookworm (security)
vulnerable
bullseye
postponed
bullseye (security)
vulnerable
forky
1:10.4p1-4
fixed
sid
1:10.4p1-4
fixed
trixie
no-dsa
trixie (security)
vulnerable
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
openssh
bionic
needs-triage
focal
needs-triage
jammy
Fixed 1:8.9p1-3ubuntu0.16
released
noble
Fixed 1:9.6p1-3ubuntu13.18
released
questing
ignored
resolute
Fixed 1:10.2p1-2ubuntu3.4
released
trusty
needs-triage
xenial
needs-triage
openssh-ssh1
bionic
ignored
focal
ignored
jammy
ignored
noble
ignored
questing
ignored
resolute
ignored
Red Hat logo
Red Hat Enterprise Linux Releases
Red Hat Product
Release
openssh
RHEL 9
0:9.9p1-9.el9_8
fixed
openssh-askpass
RHEL 9
0:9.9p1-9.el9_8
fixed
openssh-clients
RHEL 9
0:9.9p1-9.el9_8
fixed
openssh-keycat
RHEL 9
0:9.9p1-9.el9_8
fixed
openssh-server
RHEL 9
0:9.9p1-9.el9_8
fixed
pam
RHEL 9
0:0.10.4-7.9.el9_8
fixed
Amazon Linux logo
Amazon Linux Releases
Amazon Package
Release
openssh
Amazon Linux 2023
0:9.9p1-10.amzn2023.0.1
fixed
openssh-clients
Amazon Linux 2023
0:9.9p1-10.amzn2023.0.1
fixed
openssh-clients-debuginfo
Amazon Linux 2023
0:9.9p1-10.amzn2023.0.1
fixed
openssh-debuginfo
Amazon Linux 2023
0:9.9p1-10.amzn2023.0.1
fixed
openssh-debugsource
Amazon Linux 2023
0:9.9p1-10.amzn2023.0.1
fixed
openssh-keycat
Amazon Linux 2023
0:9.9p1-10.amzn2023.0.1
fixed
openssh-keycat-debuginfo
Amazon Linux 2023
0:9.9p1-10.amzn2023.0.1
fixed
openssh-server
Amazon Linux 2023
0:9.9p1-10.amzn2023.0.1
fixed
openssh-server-debuginfo
Amazon Linux 2023
0:9.9p1-10.amzn2023.0.1
fixed
openssh-sk-dummy
Amazon Linux 2023
0:9.9p1-10.amzn2023.0.1
fixed
openssh-sk-dummy-debuginfo
Amazon Linux 2023
0:9.9p1-10.amzn2023.0.1
fixed
pam_ssh_agent_auth
Amazon Linux 2023
0:0.10.4-9.10.amzn2023.0.1
fixed
pam_ssh_agent_auth-debuginfo
Amazon Linux 2023
0:0.10.4-9.10.amzn2023.0.1
fixed
Azure Linux logo
Azure Linux Releases
Azure Package
Release
openssh
Azure Linux 3.0
0:9.8p1-9.azl3
fixed
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://marc.info/?l=openssh-unix-dev&m=178333966933090&w=2
https://www.openssh.org/releasenotes.html#10.4p1
https://www.openwall.com/lists/oss-security/2026/07/06/5