# CVE-2026-60002: 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.)

CVE-2026-60002 is fixed in 23 products on 1 platform, first by openssh-client 1:10.2p1-2ubuntu3.4, released July 7, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-60002
- Priority: High
- CVSS: 9.4 (Important)
- EPSS: 0.0030
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jul 7, 2026
- Weakness: Use After Free
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-60002

## 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.)

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | openssh Debian 14 | 1:10.4p1-1 | [DEBIAN-CVE-2026-60002](https://patchblox.com/security/data/fix/linux/debian-cve-2026-60002.md) | Jul 28, 2026 |
| Linux | openssh RHEL 10 | 9.9p1-7.el10_0.4 | [RHSA-2026:65900](https://patchblox.com/security/data/fix/linux/rhsa-2026-65900.md) | Jul 31, 2026 |
| Linux | openssh RHEL 9 | 0:9.9p1-9.el9_8 | [RHSA-2026:47756](https://patchblox.com/security/data/fix/linux/rhsa-2026-47756.md) | Jul 31, 2026 |
| Linux | openssh almalinux 10 | 9.9p1-25.el10_2.alma.1 | [ALSA-2026:47757](https://patchblox.com/security/data/fix/linux/alsa-2026-47757.md) | Jul 29, 2026 |
| Linux | openssh almalinux 9 | 9.9p1-9.el9_8.alma.1 | [ALSA-2026:47756](https://patchblox.com/security/data/fix/linux/alsa-2026-47756.md) | Jul 29, 2026 |
| Linux | openssh amzn 2023 | 9.9p1-10.amzn2023.0.1 | [ALAS2023-2026-2031](https://patchblox.com/security/data/fix/linux/alas2023-2026-2031.md) | Aug 3, 2026 |
| Linux | openssh ol 10 | 0:9.9p1-25.0.1.el10_2 | [ELSA-2026-47757](https://patchblox.com/security/data/fix/linux/elsa-2026-47757.md) | Jul 30, 2026 |
| Linux | openssh ol 9 | 0:9.9p1-9.0.1.el9_8 | [ELSA-2026-47756](https://patchblox.com/security/data/fix/linux/elsa-2026-47756.md) | Aug 6, 2026 |
| Linux | openssh opensuse-leap 16.0 | 10.0p2-160000.7.1 | [OPENSUSE-SU-2026:21477-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21477-1.md) | Jul 29, 2026 |
| Linux | openssh rocky 10 | 0:9.9p1-25.el10_2.rocky.0.1 | [RLSA-2026:47757](https://patchblox.com/security/data/fix/linux/rlsa-2026-47757.md) | Jul 30, 2026 |
| Linux | openssh rocky 9 | 0:9.9p1-9.el9_8.rocky.0.1 | [RLSA-2026:47756](https://patchblox.com/security/data/fix/linux/rlsa-2026-47756.md) | Jul 30, 2026 |
| Linux | openssh sles 15.6 | 9.6p1-150600.6.49.1 | [SUSE-SU-2026:3605-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3605-1.md) | Aug 13, 2026 |
| Linux | openssh sles 15.7 | 9.6p1-150600.6.49.1 | [SUSE-SU-2026:3605-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3605-1.md) | Aug 13, 2026 |
| Linux | openssh-askpass RHEL 9 | 0:9.9p1-9.el9_8 | [RHSA-2026:47756](https://patchblox.com/security/data/fix/linux/rhsa-2026-47756.md) | Jul 31, 2026 |
| Linux | openssh-askpass almalinux 10 | 9.9p1-25.el10_2.alma.1 | [ALSA-2026:47757](https://patchblox.com/security/data/fix/linux/alsa-2026-47757.md) | Jul 29, 2026 |
| Linux | openssh-askpass almalinux 9 | 9.9p1-9.el9_8.alma.1 | [ALSA-2026:47756](https://patchblox.com/security/data/fix/linux/alsa-2026-47756.md) | Jul 29, 2026 |
| Linux | openssh-askpass ol 10 | 0:9.9p1-25.0.1.el10_2 | [ELSA-2026-47757](https://patchblox.com/security/data/fix/linux/elsa-2026-47757.md) | Jul 30, 2026 |
| Linux | openssh-askpass ol 9 | 0:9.9p1-9.0.1.el9_8 | [ELSA-2026-47756](https://patchblox.com/security/data/fix/linux/elsa-2026-47756.md) | Aug 6, 2026 |
| Linux | openssh-askpass-gnome opensuse-leap 16.0 | 10.0p2-160000.7.1 | [OPENSUSE-SU-2026:21477-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21477-1.md) | Jul 29, 2026 |
| Linux | openssh-askpass-gnome sles 15.6 | 9.6p1-150600.6.49.1 | [SUSE-SU-2026:3605-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3605-1.md) | Aug 13, 2026 |
| Linux | openssh-askpass-gnome sles 15.7 | 9.6p1-150600.6.49.1 | [SUSE-SU-2026:3605-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3605-1.md) | Aug 13, 2026 |
| Linux | openssh-client Ubuntu 22.04.1 LTS (jammy) | 1:8.9p1-3ubuntu0.16 | [openssh-client 1:8.9p1-3ubuntu0.16](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-openssh-client-1-8.9p1-3ubuntu0.16.md) | Jul 14, 2026 |
| Linux | openssh-client Ubuntu 24.04.5 LTS (noble) | 1:9.6p1-3ubuntu13.18 | [openssh-client 1:9.6p1-3ubuntu13.18](https://patchblox.com/security/data/fix/linux/ubuntu-noble-openssh-client-1-9.6p1-3ubuntu13.18.md) | Jul 14, 2026 |
| Linux | openssh-client Ubuntu 26.04.1 LTS (resolute) | 1:10.2p1-2ubuntu3.4 | [openssh-client 1:10.2p1-2ubuntu3.4](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-openssh-client-1-10.2p1-2ubuntu3.4.md) | Jul 7, 2026 |
| Linux | openssh-client-gssapi Ubuntu 26.04.1 LTS (resolute) | 1:10.2p1-2ubuntu3.4 | [openssh-client-gssapi 1:10.2p1-2ubuntu3.4](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-openssh-client-gssapi-1-10.2p1-2ubuntu3.4.md) | Jul 7, 2026 |
| Linux | openssh-clients RHEL 9 | 0:9.9p1-9.el9_8 | [RHSA-2026:47756](https://patchblox.com/security/data/fix/linux/rhsa-2026-47756.md) | Jul 31, 2026 |
| Linux | openssh-clients almalinux 10 | 9.9p1-25.el10_2.alma.1 | [ALSA-2026:47757](https://patchblox.com/security/data/fix/linux/alsa-2026-47757.md) | Jul 29, 2026 |
| Linux | openssh-clients almalinux 9 | 9.9p1-9.el9_8.alma.1 | [ALSA-2026:47756](https://patchblox.com/security/data/fix/linux/alsa-2026-47756.md) | Jul 29, 2026 |
| Linux | openssh-clients amzn 2023 | 9.9p1-10.amzn2023.0.1 | [ALAS2023-2026-2031](https://patchblox.com/security/data/fix/linux/alas2023-2026-2031.md) | Aug 3, 2026 |
| Linux | openssh-clients ol 10 | 0:9.9p1-25.0.1.el10_2 | [ELSA-2026-47757](https://patchblox.com/security/data/fix/linux/elsa-2026-47757.md) | Jul 30, 2026 |
| Linux | openssh-clients ol 9 | 0:9.9p1-9.0.1.el9_8 | [ELSA-2026-47756](https://patchblox.com/security/data/fix/linux/elsa-2026-47756.md) | Aug 6, 2026 |
| Linux | openssh-clients-debuginfo amzn 2023 | 9.9p1-10.amzn2023.0.1 | [ALAS2023-2026-2031](https://patchblox.com/security/data/fix/linux/alas2023-2026-2031.md) | Aug 3, 2026 |
| Linux | openssh-debuginfo amzn 2023 | 9.9p1-10.amzn2023.0.1 | [ALAS2023-2026-2031](https://patchblox.com/security/data/fix/linux/alas2023-2026-2031.md) | Aug 3, 2026 |
| Linux | openssh-debugsource amzn 2023 | 9.9p1-10.amzn2023.0.1 | [ALAS2023-2026-2031](https://patchblox.com/security/data/fix/linux/alas2023-2026-2031.md) | Aug 3, 2026 |
| Linux | openssh-keycat RHEL 9 | 0:9.9p1-9.el9_8 | [RHSA-2026:47756](https://patchblox.com/security/data/fix/linux/rhsa-2026-47756.md) | Jul 31, 2026 |
| Linux | openssh-keycat almalinux 10 | 9.9p1-25.el10_2.alma.1 | [ALSA-2026:47757](https://patchblox.com/security/data/fix/linux/alsa-2026-47757.md) | Jul 29, 2026 |
| Linux | openssh-keycat almalinux 9 | 9.9p1-9.el9_8.alma.1 | [ALSA-2026:47756](https://patchblox.com/security/data/fix/linux/alsa-2026-47756.md) | Jul 29, 2026 |
| Linux | openssh-keycat amzn 2023 | 9.9p1-10.amzn2023.0.1 | [ALAS2023-2026-2031](https://patchblox.com/security/data/fix/linux/alas2023-2026-2031.md) | Aug 3, 2026 |
| Linux | openssh-keycat ol 10 | 0:9.9p1-25.0.1.el10_2 | [ELSA-2026-47757](https://patchblox.com/security/data/fix/linux/elsa-2026-47757.md) | Jul 30, 2026 |
| Linux | openssh-keycat ol 9 | 0:9.9p1-9.0.1.el9_8 | [ELSA-2026-47756](https://patchblox.com/security/data/fix/linux/elsa-2026-47756.md) | Aug 6, 2026 |
| Linux | openssh-keycat-debuginfo amzn 2023 | 9.9p1-10.amzn2023.0.1 | [ALAS2023-2026-2031](https://patchblox.com/security/data/fix/linux/alas2023-2026-2031.md) | Aug 3, 2026 |
| Linux | openssh-keysign almalinux 10 | 9.9p1-25.el10_2.alma.1 | [ALSA-2026:47757](https://patchblox.com/security/data/fix/linux/alsa-2026-47757.md) | Jul 29, 2026 |
| Linux | openssh-keysign ol 10 | 0:9.9p1-25.0.1.el10_2 | [ELSA-2026-47757](https://patchblox.com/security/data/fix/linux/elsa-2026-47757.md) | Jul 30, 2026 |
| Linux | openssh-server RHEL 9 | 0:9.9p1-9.el9_8 | [RHSA-2026:47756](https://patchblox.com/security/data/fix/linux/rhsa-2026-47756.md) | Jul 31, 2026 |
| Linux | openssh-server Ubuntu 22.04.1 LTS (jammy) | 1:8.9p1-3ubuntu0.16 | [openssh-server 1:8.9p1-3ubuntu0.16](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-openssh-server-1-8.9p1-3ubuntu0.16.md) | Jul 14, 2026 |
| Linux | openssh-server Ubuntu 24.04.5 LTS (noble) | 1:9.6p1-3ubuntu13.18 | [openssh-server 1:9.6p1-3ubuntu13.18](https://patchblox.com/security/data/fix/linux/ubuntu-noble-openssh-server-1-9.6p1-3ubuntu13.18.md) | Jul 14, 2026 |
| Linux | openssh-server Ubuntu 26.04.1 LTS (resolute) | 1:10.2p1-2ubuntu3.4 | [openssh-server 1:10.2p1-2ubuntu3.4](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-openssh-server-1-10.2p1-2ubuntu3.4.md) | Jul 7, 2026 |
| Linux | openssh-server almalinux 10 | 9.9p1-25.el10_2.alma.1 | [ALSA-2026:47757](https://patchblox.com/security/data/fix/linux/alsa-2026-47757.md) | Jul 29, 2026 |
| Linux | openssh-server almalinux 9 | 9.9p1-9.el9_8.alma.1 | [ALSA-2026:47756](https://patchblox.com/security/data/fix/linux/alsa-2026-47756.md) | Jul 29, 2026 |
| Linux | openssh-server amzn 2023 | 9.9p1-10.amzn2023.0.1 | [ALAS2023-2026-2031](https://patchblox.com/security/data/fix/linux/alas2023-2026-2031.md) | Aug 3, 2026 |
| Linux | openssh-server ol 10 | 0:9.9p1-25.0.1.el10_2 | [ELSA-2026-47757](https://patchblox.com/security/data/fix/linux/elsa-2026-47757.md) | Jul 30, 2026 |
| Linux | openssh-server ol 9 | 0:9.9p1-9.0.1.el9_8 | [ELSA-2026-47756](https://patchblox.com/security/data/fix/linux/elsa-2026-47756.md) | Aug 6, 2026 |
| Linux | openssh-server-debuginfo amzn 2023 | 9.9p1-10.amzn2023.0.1 | [ALAS2023-2026-2031](https://patchblox.com/security/data/fix/linux/alas2023-2026-2031.md) | Aug 3, 2026 |
| Linux | openssh-server-gssapi Ubuntu 26.04.1 LTS (resolute) | 1:10.2p1-2ubuntu3.4 | [openssh-server-gssapi 1:10.2p1-2ubuntu3.4](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-openssh-server-gssapi-1-10.2p1-2ubuntu3.4.md) | Jul 7, 2026 |
| Linux | openssh-sftp-server Ubuntu 22.04.1 LTS (jammy) | 1:8.9p1-3ubuntu0.16 | [openssh-sftp-server 1:8.9p1-3ubuntu0.16](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-openssh-sftp-server-1-8.9p1-3ubuntu0.16.md) | Jul 14, 2026 |
| Linux | openssh-sftp-server Ubuntu 24.04.5 LTS (noble) | 1:9.6p1-3ubuntu13.18 | [openssh-sftp-server 1:9.6p1-3ubuntu13.18](https://patchblox.com/security/data/fix/linux/ubuntu-noble-openssh-sftp-server-1-9.6p1-3ubuntu13.18.md) | Jul 14, 2026 |
| Linux | openssh-sftp-server Ubuntu 26.04.1 LTS (resolute) | 1:10.2p1-2ubuntu3.4 | [openssh-sftp-server 1:10.2p1-2ubuntu3.4](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-openssh-sftp-server-1-10.2p1-2ubuntu3.4.md) | Jul 7, 2026 |
| Linux | openssh-sk-dummy amzn 2023 | 9.9p1-10.amzn2023.0.1 | [ALAS2023-2026-2031](https://patchblox.com/security/data/fix/linux/alas2023-2026-2031.md) | Aug 3, 2026 |
| Linux | openssh-sk-dummy-debuginfo amzn 2023 | 9.9p1-10.amzn2023.0.1 | [ALAS2023-2026-2031](https://patchblox.com/security/data/fix/linux/alas2023-2026-2031.md) | Aug 3, 2026 |
| Linux | openssh-tests Ubuntu 22.04.1 LTS (jammy) | 1:8.9p1-3ubuntu0.16 | [openssh-tests 1:8.9p1-3ubuntu0.16](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-openssh-tests-1-8.9p1-3ubuntu0.16.md) | Jul 14, 2026 |
| Linux | openssh-tests Ubuntu 24.04.5 LTS (noble) | 1:9.6p1-3ubuntu13.18 | [openssh-tests 1:9.6p1-3ubuntu13.18](https://patchblox.com/security/data/fix/linux/ubuntu-noble-openssh-tests-1-9.6p1-3ubuntu13.18.md) | Jul 14, 2026 |
| Linux | openssh-tests Ubuntu 26.04.1 LTS (resolute) | 1:10.2p1-2ubuntu3.4 | [openssh-tests 1:10.2p1-2ubuntu3.4](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-openssh-tests-1-10.2p1-2ubuntu3.4.md) | Jul 7, 2026 |
| Linux | pam_ssh_agent_auth RHEL 9 | 0:0.10.4-7.9.el9_8 | [RHSA-2026:47756](https://patchblox.com/security/data/fix/linux/rhsa-2026-47756.md) | Jul 31, 2026 |
| Linux | pam_ssh_agent_auth almalinux 9 | 0.10.4-7.9.el9_8.alma.1 | [ALSA-2026:47756](https://patchblox.com/security/data/fix/linux/alsa-2026-47756.md) | Jul 29, 2026 |
| Linux | pam_ssh_agent_auth amzn 2023 | 0.10.4-9.10.amzn2023.0.1 | [ALAS2023-2026-2031](https://patchblox.com/security/data/fix/linux/alas2023-2026-2031.md) | Aug 3, 2026 |
| Linux | pam_ssh_agent_auth ol 9 | 0:0.10.4-7.9.0.1.el9_8 | [ELSA-2026-47756](https://patchblox.com/security/data/fix/linux/elsa-2026-47756.md) | Aug 6, 2026 |
| Linux | pam_ssh_agent_auth-debuginfo amzn 2023 | 0.10.4-9.10.amzn2023.0.1 | [ALAS2023-2026-2031](https://patchblox.com/security/data/fix/linux/alas2023-2026-2031.md) | Aug 3, 2026 |
| Linux | ssh Ubuntu 22.04.1 LTS (jammy) | 1:8.9p1-3ubuntu0.16 | [ssh 1:8.9p1-3ubuntu0.16](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-ssh-1-8.9p1-3ubuntu0.16.md) | Jul 14, 2026 |
| Linux | ssh Ubuntu 24.04.5 LTS (noble) | 1:9.6p1-3ubuntu13.18 | [ssh 1:9.6p1-3ubuntu13.18](https://patchblox.com/security/data/fix/linux/ubuntu-noble-ssh-1-9.6p1-3ubuntu13.18.md) | Jul 14, 2026 |
| Linux | ssh Ubuntu 26.04.1 LTS (resolute) | 1:10.2p1-2ubuntu3.4 | [ssh 1:10.2p1-2ubuntu3.4](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-ssh-1-10.2p1-2ubuntu3.4.md) | Jul 7, 2026 |
| Linux | ssh-askpass-gnome Ubuntu 22.04.1 LTS (jammy) | 1:8.9p1-3ubuntu0.16 | [ssh-askpass-gnome 1:8.9p1-3ubuntu0.16](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-ssh-askpass-gnome-1-8.9p1-3ubuntu0.16.md) | Jul 14, 2026 |
| Linux | ssh-askpass-gnome Ubuntu 24.04.5 LTS (noble) | 1:9.6p1-3ubuntu13.18 | [ssh-askpass-gnome 1:9.6p1-3ubuntu13.18](https://patchblox.com/security/data/fix/linux/ubuntu-noble-ssh-askpass-gnome-1-9.6p1-3ubuntu13.18.md) | Jul 14, 2026 |
| Linux | ssh-askpass-gnome Ubuntu 26.04.1 LTS (resolute) | 1:10.2p1-2ubuntu3.4 | [ssh-askpass-gnome 1:10.2p1-2ubuntu3.4](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-ssh-askpass-gnome-1-10.2p1-2ubuntu3.4.md) | Jul 7, 2026 |

---

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