critical
CVE-2026-60002
openssh: OpenSSH: Use-after-free vulnerability during host key re-exchange on the client side
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.
Severity by source
NVD9.4CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
Red Hat7.7CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
Julia9.4CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
Trivy's own label is CRITICAL. Rated critical by NVD, Julia, Photon OS. Rated lower by Red Hat (high), AlmaLinux (high), Azure Linux (high), Oracle (high), Rocky Linux (high), Amazon (medium), Ubuntu (medium).
Description
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.)
Affected packages and fixed versions
| Source | Package | Fixed in |
|---|---|---|
| julia::Julia Ecosystem Security Advisories | OpenSSH_jll | 10.4.1+0 |
| Photon OS 4.0 | openssh, openssh-clients, openssh-server and 1 more | 8.9p1-16.ph4 |
| Photon OS 5.0 | openssh, openssh-clients, openssh-server and 1 more | 10.4p1-1.ph5 |
| alma 10 | openssh, openssh-askpass, openssh-clients and 3 more | 9.9p1-25.el10_2.alma.1 |
| alma 9 | openssh, openssh-askpass, openssh-clients and 3 more | 9.9p1-9.el9_8.alma.1 and 1 more |
| alpine 3.24 | openssh | 10.3_p1-r1 |
| amazon linux 2023 | openssh, openssh-clients, openssh-clients-debuginfo and 10 more | 9.9p1-10.amzn2023.0.1 and 1 more |
| Azure Linux 3.0 | openssh | 0:9.8p1-9.azl3 |
| debian 11 | openssh | no fix listed |
| debian 12 | openssh | no fix listed |
| debian 13 | openssh | no fix listed |
| debian 14 | openssh | 1:10.4p1-1 |
Show all 141 entries from 43 sources
| Source | Package | Fixed in |
|---|---|---|
| julia::Julia Ecosystem Security Advisories | OpenSSH_jll | 10.4.1+0 |
| Photon OS 4.0 | openssh | 8.9p1-16.ph4 |
| Photon OS 4.0 | openssh-clients | 8.9p1-16.ph4 |
| Photon OS 4.0 | openssh-server | 8.9p1-16.ph4 |
| Photon OS 4.0 | openssh-socket | 8.9p1-16.ph4 |
| Photon OS 5.0 | openssh | 10.4p1-1.ph5 |
| Photon OS 5.0 | openssh-clients | 10.4p1-1.ph5 |
| Photon OS 5.0 | openssh-server | 10.4p1-1.ph5 |
| Photon OS 5.0 | openssh-socket | 10.4p1-1.ph5 |
| alma 10 | openssh | 9.9p1-25.el10_2.alma.1 |
| alma 10 | openssh-askpass | 9.9p1-25.el10_2.alma.1 |
| alma 10 | openssh-clients | 9.9p1-25.el10_2.alma.1 |
| alma 10 | openssh-keycat | 9.9p1-25.el10_2.alma.1 |
| alma 10 | openssh-keysign | 9.9p1-25.el10_2.alma.1 |
| alma 10 | openssh-server | 9.9p1-25.el10_2.alma.1 |
| alma 9 | openssh | 9.9p1-9.el9_8.alma.1 |
| alma 9 | openssh-askpass | 9.9p1-9.el9_8.alma.1 |
| alma 9 | openssh-clients | 9.9p1-9.el9_8.alma.1 |
| alma 9 | openssh-keycat | 9.9p1-9.el9_8.alma.1 |
| alma 9 | openssh-server | 9.9p1-9.el9_8.alma.1 |
| alma 9 | pam_ssh_agent_auth | 0.10.4-7.9.el9_8.alma.1 |
| alpine 3.24 | openssh | 10.3_p1-r1 |
| amazon linux 2023 | openssh | 9.9p1-10.amzn2023.0.1 |
| amazon linux 2023 | openssh-clients | 9.9p1-10.amzn2023.0.1 |
| amazon linux 2023 | openssh-clients-debuginfo | 9.9p1-10.amzn2023.0.1 |
| amazon linux 2023 | openssh-debuginfo | 9.9p1-10.amzn2023.0.1 |
| amazon linux 2023 | openssh-debugsource | 9.9p1-10.amzn2023.0.1 |
| amazon linux 2023 | openssh-keycat | 9.9p1-10.amzn2023.0.1 |
| amazon linux 2023 | openssh-keycat-debuginfo | 9.9p1-10.amzn2023.0.1 |
| amazon linux 2023 | openssh-server | 9.9p1-10.amzn2023.0.1 |
| amazon linux 2023 | openssh-server-debuginfo | 9.9p1-10.amzn2023.0.1 |
| amazon linux 2023 | openssh-sk-dummy | 9.9p1-10.amzn2023.0.1 |
| amazon linux 2023 | openssh-sk-dummy-debuginfo | 9.9p1-10.amzn2023.0.1 |
| amazon linux 2023 | pam_ssh_agent_auth | 0.10.4-9.10.amzn2023.0.1 |
| amazon linux 2023 | pam_ssh_agent_auth-debuginfo | 0.10.4-9.10.amzn2023.0.1 |
| Azure Linux 3.0 | openssh | 0:9.8p1-9.azl3 |
| debian 11 | openssh | no fix listed |
| debian 12 | openssh | no fix listed |
| debian 13 | openssh | no fix listed |
| debian 14 | openssh | 1:10.4p1-1 |
| echo | openssh | 1:10.4p1-1 |
| Oracle Linux 9 | openssh | 9.9p1-9.0.1.el9_8 |
| Oracle Linux 9 | openssh-askpass | 9.9p1-9.0.1.el9_8 |
| Oracle Linux 9 | openssh-clients | 9.9p1-9.0.1.el9_8 |
| Oracle Linux 9 | openssh-keycat | 9.9p1-9.0.1.el9_8 |
| Oracle Linux 9 | openssh-server | 9.9p1-9.0.1.el9_8 |
| Oracle Linux 9 | pam_ssh_agent_auth | 0.10.4-7.9.0.1.el9_8 |
| rapidfort alma 10 | openssh | 0:9.9p1-25.el10_2.alma.1 |
| rapidfort alma 10 | openssh-askpass | 9.9p1-25.el10_2.alma.1 |
| rapidfort alma 10 | openssh-clients | 0:9.9p1-25.el10_2.alma.1 |
| rapidfort alma 10 | openssh-keycat | 9.9p1-25.el10_2.alma.1 |
| rapidfort alma 10 | openssh-keysign | 9.9p1-25.el10_2.alma.1 |
| rapidfort alma 10 | openssh-server | 9.9p1-25.el10_2.alma.1 |
| rapidfort alma 9 | openssh | 0:9.9p1-9.el9_8.alma.1 |
| rapidfort alma 9 | openssh-askpass | 9.9p1-9.el9_8.alma.1 |
| rapidfort alma 9 | openssh-clients | 0:9.9p1-9.el9_8.alma.1 |
| rapidfort alma 9 | openssh-keycat | 9.9p1-9.el9_8.alma.1 |
| rapidfort alma 9 | openssh-server | 9.9p1-9.el9_8.alma.1 |
| rapidfort alma 9 | pam_ssh_agent_auth | 0.10.4-7.9.el9_8.alma.1 |
| rapidfort alpine 3.20 | openssh | 10.3_p1-r1 |
| rapidfort alpine 3.21 | openssh | 10.3_p1-r1 |
| rapidfort alpine 3.22 | openssh | 10.3_p1-r1 |
| rapidfort alpine 3.23 | openssh | 10.3_p1-r1 |
| rapidfort alpine 3.24 | openssh | 10.3_p1-r1 |
| rapidfort amazon linux 2023 | openssh | 9.9p1-10.amzn2023.0.1 |
| rapidfort amazon linux 2023 | openssh-clients | 9.9p1-10.amzn2023.0.1 |
| rapidfort amazon linux 2023 | openssh-keycat | 9.9p1-10.amzn2023.0.1 |
| rapidfort amazon linux 2023 | pam_ssh_agent_auth | 0.10.4-9.10.amzn2023.0.1 |
| rapidfort debian | rf-openssh | 1:10.4p1-11rfubu1 |
| rapidfort debian 12 | openssh | 1:10.4p1-1 |
| rapidfort debian 12 | rf-openssh | 1:10.4p1-1 |
| rapidfort debian 13 | openssh | 1:10.4p1-1 |
| rapidfort debian 13 | rf-openssh | 1:10.4p1-1 |
| rapidfort fedora 41 | openssh | 0:9.9p1-5.fc41 |
| rapidfort fedora 41 | openssh-clients | 0:9.9p1-5.fc41 |
| rapidfort fedora 41 | openssh-server | 0:9.9p1-5.fc41 |
| rapidfort fedora 41 | rf-openssh | 0:9.9p1-5.fc41 |
| rapidfort fedora 41 | rf-openssh-clients | 0:9.9p1-5.fc41 |
| rapidfort fedora 41 | rf-openssh-server | 0:9.9p1-5.fc41 |
| rapidfort fedora 42 | openssh | 0:9.9p1-15.fc42 |
| rapidfort fedora 42 | openssh-clients | 0:9.9p1-15.fc42 |
| rapidfort fedora 42 | openssh-server | 0:9.9p1-15.fc42 |
| rapidfort fedora 42 | rf-openssh | 0:9.9p1-15.fc42 |
| rapidfort fedora 42 | rf-openssh-clients | 0:9.9p1-15.fc42 |
| rapidfort fedora 42 | rf-openssh-server | 0:9.9p1-15.fc42 |
| rapidfort fedora 43 | openssh | 0:10.0p1-11.fc43 |
| rapidfort fedora 43 | openssh-askpass | 10.0p1-11.fc43 |
| rapidfort fedora 43 | openssh-clients | 0:10.0p1-11.fc43 |
| rapidfort fedora 43 | openssh-keycat | 10.0p1-11.fc43 |
| rapidfort fedora 43 | openssh-keysign | 10.0p1-11.fc43 |
| rapidfort fedora 43 | openssh-server | 0:10.0p1-11.fc43 |
| rapidfort fedora 43 | openssh-sk-dummy | 10.0p1-11.fc43 |
| rapidfort fedora 43 | rf-openssh | 0:10.0p1-11.fc43 |
| rapidfort fedora 43 | rf-openssh-askpass | 10.0p1-11.fc43 |
| rapidfort fedora 43 | rf-openssh-clients | 0:10.0p1-11.fc43 |
| rapidfort fedora 43 | rf-openssh-keycat | 10.0p1-11.fc43 |
| rapidfort fedora 43 | rf-openssh-keysign | 10.0p1-11.fc43 |
| rapidfort fedora 43 | rf-openssh-server | 0:10.0p1-11.fc43 |
| rapidfort fedora 43 | rf-openssh-sk-dummy | 10.0p1-11.fc43 |
| rapidfort Oracle Linux 10 | openssh | 0:9.9p1-25.0.1.el10_2 |
| rapidfort Oracle Linux 10 | openssh-askpass | 0:9.9p1-25.0.1.el10_2 |
| rapidfort Oracle Linux 10 | openssh-clients | 0:9.9p1-25.0.1.el10_2 |
| rapidfort Oracle Linux 10 | openssh-keycat | 0:9.9p1-25.0.1.el10_2 |
| rapidfort Oracle Linux 10 | openssh-keysign | 0:9.9p1-25.0.1.el10_2 |
| rapidfort Oracle Linux 10 | openssh-server | 0:9.9p1-25.0.1.el10_2 |
| rapidfort Oracle Linux 9 | openssh | 0:9.9p1-9.0.1.el9_8 |
| rapidfort Oracle Linux 9 | openssh-askpass | 0:9.9p1-9.0.1.el9_8 |
| rapidfort Oracle Linux 9 | openssh-clients | 0:9.9p1-9.0.1.el9_8 |
| rapidfort Oracle Linux 9 | openssh-keycat | 0:9.9p1-9.0.1.el9_8 |
| rapidfort Oracle Linux 9 | openssh-server | 0:9.9p1-9.0.1.el9_8 |
| rapidfort Oracle Linux 9 | pam_ssh_agent_auth | 0:0.10.4-7.9.0.1.el9_8 |
| rapidfort rocky 9 | openssh | 0:9.9p1-9.el9_8.rocky.0.1 |
| rapidfort rocky 9 | openssh-askpass | 0:9.9p1-9.el9_8.rocky.0.1 |
| rapidfort rocky 9 | openssh-clients | 0:9.9p1-9.el9_8.rocky.0.1 |
| rapidfort rocky 9 | openssh-keycat | 0:9.9p1-9.el9_8.rocky.0.1 |
| rapidfort rocky 9 | openssh-server | 0:9.9p1-9.el9_8.rocky.0.1 |
| rapidfort rocky 9 | pam_ssh_agent_auth | 0:0.10.4-7.9.el9_8.rocky.0.1 |
| rapidfort ubuntu | openssh | 1:10.4p1-11rfubu1 |
| rapidfort ubuntu | rf-openssh | 1:10.4p1-11rfubu1 |
| rapidfort ubuntu 20.04 | openssh | 1:9.6p1-3ubuntu13.18 |
| rapidfort ubuntu 20.04 | rf-openssh | 1:9.6p1-3ubuntu13.18 |
| rapidfort ubuntu 22.04 | openssh | 1:9.6p1-3ubuntu13.18 |
| rapidfort ubuntu 22.04 | rf-openssh | 1:9.6p1-3ubuntu13.18 |
| rapidfort ubuntu 24.04 | openssh | 1:9.6p1-3ubuntu13.18 |
| rapidfort ubuntu 24.04 | rf-openssh | 1:9.6p1-3ubuntu13.18 |
| Red Hat | openshift/ose-rhel-coreos-9 | no fix listed |
| rocky 10 | openssh | 0.0.0 |
| rocky 10 | openssh-clients | 0.0.0 |
| rocky 10 | openssh-keycat | 0.0.0 |
| rocky 10 | openssh-server | 0.0.0 |
| rocky 9 | openssh | 9.9p1-9.el9_8.rocky.0.1 |
| rocky 9 | openssh-clients | 9.9p1-9.el9_8.rocky.0.1 |
| rocky 9 | openssh-keycat | 9.9p1-9.el9_8.rocky.0.1 |
| rocky 9 | openssh-server | 9.9p1-9.el9_8.rocky.0.1 |
| seal Red Hat 6 | openssh | 5.3p1-124.el6_10+sp999 |
| seal Red Hat 6 | seal-openssh | 5.3p1-124.el6_10+sp999 |
| seal Red Hat 7 | openssh | 7.4p1-23.0.3.el7_9+sp999 |
| seal Red Hat 7 | seal-openssh | 7.4p1-23.0.3.el7_9+sp999 |
| ubuntu 22.04 | openssh | 1:8.9p1-3ubuntu0.16 |
| ubuntu 24.04 | openssh | 1:9.6p1-3ubuntu13.18 |
| ubuntu 26.04 | openssh | 1:10.2p1-2ubuntu3.4 |
References
- https://access.redhat.com/errata/RHSA-2026:47756
- https://access.redhat.com/security/cve/CVE-2026-60002
- https://bugzilla.redhat.com/2462250
- https://bugzilla.redhat.com/2462351
- https://bugzilla.redhat.com/2462493
- https://bugzilla.redhat.com/2497936
- https://bugzilla.redhat.com/2497944
- https://bugzilla.redhat.com/show_bug.cgi?id=2462250
All 29 references
- https://bugzilla.redhat.com/show_bug.cgi?id=2462351
- https://bugzilla.redhat.com/show_bug.cgi?id=2462493
- https://bugzilla.redhat.com/show_bug.cgi?id=2497936
- https://bugzilla.redhat.com/show_bug.cgi?id=2497944
- https://creativecommons.org/licenses/by/4.0/
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-55653
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-55654
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-55655
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-59996
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-60002
- https://errata.almalinux.org/9/ALSA-2026-47756.html
- https://errata.rockylinux.org/RLSA-2026:47756
- https://github.com/advisories/GHSA-gp5v-jg37-fvg6
- https://linux.oracle.com/cve/CVE-2026-60002.html
- https://linux.oracle.com/errata/ELSA-2026-47757.html
- https://marc.info/?l=openssh-unix-dev&m=178333966933090&w=2
- https://nvd.nist.gov/vuln/detail/CVE-2026-60002
- https://ubuntu.com/security/notices/USN-8533-1
- https://www.cve.org/CVERecord?id=CVE-2026-60002
- https://www.openssh.org/releasenotes.html#10.4p1
- https://www.openwall.com/lists/oss-security/2026/07/06/5