CVE-2026-35414
OpenSSH before 10.3 mishandles the authorized_keys principals option in uncommon scenarios involving a principals list in conjunction with a Certificate Authority that makes certain use of comma characters.
CVE-2026-35414 is fixed in 23 products on 1 platform, first by openssh-client 1:8.9p1-3ubuntu0.15, released April 2, 2026. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
8.1
Moderate
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0022
12th percentile
mishandling of authorized_keys principals option (bsc#1261430).
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| openssh · Debian 12.15 (bookworm) | 1:9.2p1-2+deb12u10 | DEBIAN-CVE-2026-35414 | Apr 2, 2026 |
| openssh · Debian 13.5 (trixie) | 1:10.0p1-7+deb13u3 | DEBIAN-CVE-2026-35414 | Apr 2, 2026 |
| openssh · Debian 14 | 1:10.3p1-1 | DEBIAN-CVE-2026-35414 | Apr 2, 2026 |
| openssh · RHEL 10 | 9.9p1-7.el10_0.3 | RHSA-2026:12389 | Apr 2, 2026 |
| openssh · RHEL 8 | 0:8.0p1-29.el8_10 | RHSA-2026:13383 | May 15, 2026 |
| openssh · RHEL 9 | 0:9.9p1-7.el9_8 | RHSA-2026:19219 | May 15, 2026 |
| openssh · almalinux 10 | 9.9p1-23.el10_2.alma.1 | ALSA-2026:19069 | May 19, 2026 |
| openssh · almalinux 8 | 8.0p1-29.el8_10 | ALSA-2026:13383 | May 4, 2026 |
| openssh · almalinux 9 | 9.9p1-7.el9_8.alma.1 | ALSA-2026:19219 | May 19, 2026 |
| openssh · amzn 2023 | 8.7p1-8.amzn2023.0.18 | ALAS2023-2026-1745 | May 25, 2026 |
| openssh · ol 10 | 0:9.9p1-14.0.1.el10_1 | ELSA-2026-13380 | May 5, 2026 |
| openssh · ol 8 | 0:8.0p1-29.0.1.el8_10 | ELSA-2026-13383 | May 5, 2026 |
| openssh · ol 9 | 0:8.7p1-49.0.1.el9_7 | ELSA-2026-13381 | May 5, 2026 |
| openssh · rocky 10 | 0:9.9p1-23.el10_2.rocky.0.1 | RLSA-2026:19069 | May 29, 2026 |
| openssh · rocky 8 | 0:8.0p1-29.el8_10 | RLSA-2026:13383 | May 6, 2026 |
| openssh · rocky 9 | 0:9.9p1-7.el9_8.rocky.0.1 | RLSA-2026:19219 | May 28, 2026 |
| openssh · sles 15.6 | 9.6p1-150600.6.42.1 | SUSE-SU-2026:2371-1 | Jun 11, 2026 |
| openssh · sles 15.7 | 9.6p1-150600.6.42.1 | SUSE-SU-2026:2371-1 | Jun 11, 2026 |
| openssh-askpass · RHEL 8 | 0:8.0p1-29.el8_10 | RHSA-2026:13383 | May 15, 2026 |
| openssh-askpass · RHEL 9 | 0:9.9p1-7.el9_8 | RHSA-2026:19219 | May 15, 2026 |
| openssh-askpass · almalinux 10 | 9.9p1-23.el10_2.alma.1 | ALSA-2026:19069 | May 19, 2026 |
| openssh-askpass · almalinux 8 | 8.0p1-29.el8_10 | ALSA-2026:13383 | May 4, 2026 |
| openssh-askpass · almalinux 9 | 9.9p1-7.el9_8.alma.1 | ALSA-2026:19219 | May 19, 2026 |
| openssh-askpass · ol 10 | 0:9.9p1-14.0.1.el10_1 | ELSA-2026-13380 | May 5, 2026 |
| openssh-askpass · ol 8 | 0:8.0p1-29.0.1.el8_10 | ELSA-2026-13383 | May 5, 2026 |
| openssh-askpass · ol 9 | 0:8.7p1-49.0.1.el9_7 | ELSA-2026-13381 | May 5, 2026 |
| openssh-askpass-gnome · sles 15.6 | 9.6p1-150600.6.42.1 | SUSE-SU-2026:2371-1 | Jun 11, 2026 |
| openssh-askpass-gnome · sles 15.7 | 9.6p1-150600.6.42.1 | SUSE-SU-2026:2371-1 | Jun 11, 2026 |
| openssh-cavs · RHEL 8 | 0:8.0p1-29.el8_10 | RHSA-2026:13383 | May 15, 2026 |
| openssh-cavs · almalinux 8 | 8.0p1-29.el8_10 | ALSA-2026:13383 | May 4, 2026 |
| openssh-cavs · ol 8 | 0:8.0p1-29.0.1.el8_10 | ELSA-2026-13383 | May 5, 2026 |
| openssh-client · Ubuntu 18.04.6 LTS (bionic) | 1:7.6p1-4ubuntu0.7+esm6 | openssh-client 1:7.6p1-4ubuntu0.7+esm6 | Aug 11, 2026 |
| openssh-client · Ubuntu 20.04 LTS (focal) | 1:8.2p1-4ubuntu0.13+esm3 | openssh-client 1:8.2p1-4ubuntu0.13+esm3 | Aug 11, 2026 |
| openssh-client · Ubuntu 22.04.1 LTS (jammy) | 1:8.9p1-3ubuntu0.15 | openssh-client 1:8.9p1-3ubuntu0.15 | Apr 2, 2026 |
| openssh-client · Ubuntu 24.04.5 LTS (noble) | 1:9.6p1-3ubuntu13.16 | openssh-client 1:9.6p1-3ubuntu13.16 | Apr 2, 2026 |
| openssh-client · Ubuntu 25.10 (questing) | 1:10.0p1-5ubuntu5.4 | openssh-client 1:10.0p1-5ubuntu5.4 | Apr 2, 2026 |
| openssh-client · Ubuntu 26.04.1 LTS (resolute) | 1:10.2p1-2ubuntu3.2 | openssh-client 1:10.2p1-2ubuntu3.2 | Apr 2, 2026 |
| openssh-client-gssapi · Ubuntu 25.10 (questing) | 1:10.0p1-5ubuntu5.4 | openssh-client-gssapi 1:10.0p1-5ubuntu5.4 | Apr 2, 2026 |
| openssh-client-gssapi · Ubuntu 26.04.1 LTS (resolute) | 1:10.2p1-2ubuntu3.2 | openssh-client-gssapi 1:10.2p1-2ubuntu3.2 | Apr 2, 2026 |
| openssh-clients · RHEL 8 | 0:8.0p1-29.el8_10 | RHSA-2026:13383 | May 15, 2026 |
| openssh-clients · RHEL 9 | 0:9.9p1-7.el9_8 | RHSA-2026:19219 | May 15, 2026 |
| openssh-clients · almalinux 10 | 9.9p1-23.el10_2.alma.1 | ALSA-2026:19069 | May 19, 2026 |
| openssh-clients · almalinux 8 | 8.0p1-29.el8_10 | ALSA-2026:13383 | May 4, 2026 |
| openssh-clients · almalinux 9 | 9.9p1-7.el9_8.alma.1 | ALSA-2026:19219 | May 19, 2026 |
| openssh-clients · amzn 2023 | 8.7p1-8.amzn2023.0.18 | ALAS2023-2026-1745 | May 25, 2026 |
| openssh-clients · ol 10 | 0:9.9p1-14.0.1.el10_1 | ELSA-2026-13380 | May 5, 2026 |
| openssh-clients · ol 8 | 0:8.0p1-29.0.1.el8_10 | ELSA-2026-13383 | May 5, 2026 |
| openssh-clients · ol 9 | 0:8.7p1-49.0.1.el9_7 | ELSA-2026-13381 | May 5, 2026 |
| openssh-clients-debuginfo · amzn 2023 | 8.7p1-8.amzn2023.0.18 | ALAS2023-2026-1745 | May 25, 2026 |
| openssh-debuginfo · amzn 2023 | 8.7p1-8.amzn2023.0.18 | ALAS2023-2026-1745 | May 25, 2026 |
| openssh-debugsource · amzn 2023 | 8.7p1-8.amzn2023.0.18 | ALAS2023-2026-1745 | May 25, 2026 |
| openssh-keycat · RHEL 8 | 0:8.0p1-29.el8_10 | RHSA-2026:13383 | May 15, 2026 |
| openssh-keycat · RHEL 9 | 0:9.9p1-7.el9_8 | RHSA-2026:19219 | May 15, 2026 |
| openssh-keycat · almalinux 10 | 9.9p1-23.el10_2.alma.1 | ALSA-2026:19069 | May 19, 2026 |
| openssh-keycat · almalinux 8 | 8.0p1-29.el8_10 | ALSA-2026:13383 | May 4, 2026 |
| openssh-keycat · almalinux 9 | 9.9p1-7.el9_8.alma.1 | ALSA-2026:19219 | May 19, 2026 |
| openssh-keycat · amzn 2023 | 8.7p1-8.amzn2023.0.18 | ALAS2023-2026-1745 | May 25, 2026 |
| openssh-keycat · ol 10 | 0:9.9p1-14.0.1.el10_1 | ELSA-2026-13380 | May 5, 2026 |
| openssh-keycat · ol 8 | 0:8.0p1-29.0.1.el8_10 | ELSA-2026-13383 | May 5, 2026 |
| openssh-keycat · ol 9 | 0:8.7p1-49.0.1.el9_7 | ELSA-2026-13381 | May 5, 2026 |
| openssh-keycat-debuginfo · amzn 2023 | 8.7p1-8.amzn2023.0.18 | ALAS2023-2026-1745 | May 25, 2026 |
| openssh-keysign · almalinux 10 | 9.9p1-23.el10_2.alma.1 | ALSA-2026:19069 | May 19, 2026 |
| openssh-keysign · ol 10 | 0:9.9p1-14.0.1.el10_1 | ELSA-2026-13380 | May 5, 2026 |
| openssh-ldap · RHEL 8 | 0:8.0p1-29.el8_10 | RHSA-2026:13383 | May 15, 2026 |
| openssh-ldap · almalinux 8 | 8.0p1-29.el8_10 | ALSA-2026:13383 | May 4, 2026 |
| openssh-ldap · ol 8 | 0:8.0p1-29.0.1.el8_10 | ELSA-2026-13383 | May 5, 2026 |
| openssh-server · RHEL 8 | 0:8.0p1-29.el8_10 | RHSA-2026:13383 | May 15, 2026 |
| openssh-server · RHEL 9 | 0:9.9p1-7.el9_8 | RHSA-2026:19219 | May 15, 2026 |
| openssh-server · Ubuntu 18.04.6 LTS (bionic) | 1:7.6p1-4ubuntu0.7+esm6 | openssh-server 1:7.6p1-4ubuntu0.7+esm6 | Aug 11, 2026 |
| openssh-server · Ubuntu 20.04 LTS (focal) | 1:8.2p1-4ubuntu0.13+esm3 | openssh-server 1:8.2p1-4ubuntu0.13+esm3 | Aug 11, 2026 |
| openssh-server · Ubuntu 22.04.1 LTS (jammy) | 1:8.9p1-3ubuntu0.15 | openssh-server 1:8.9p1-3ubuntu0.15 | Apr 2, 2026 |
| openssh-server · Ubuntu 24.04.5 LTS (noble) | 1:9.6p1-3ubuntu13.16 | openssh-server 1:9.6p1-3ubuntu13.16 | Apr 2, 2026 |
| openssh-server · Ubuntu 25.10 (questing) | 1:10.0p1-5ubuntu5.4 | openssh-server 1:10.0p1-5ubuntu5.4 | Apr 2, 2026 |
| openssh-server · Ubuntu 26.04.1 LTS (resolute) | 1:10.2p1-2ubuntu3.2 | openssh-server 1:10.2p1-2ubuntu3.2 | Apr 2, 2026 |
| openssh-server · almalinux 10 | 9.9p1-23.el10_2.alma.1 | ALSA-2026:19069 | May 19, 2026 |
| openssh-server · almalinux 8 | 8.0p1-29.el8_10 | ALSA-2026:13383 | May 4, 2026 |
| openssh-server · almalinux 9 | 9.9p1-7.el9_8.alma.1 | ALSA-2026:19219 | May 19, 2026 |
| openssh-server · amzn 2023 | 8.7p1-8.amzn2023.0.18 | ALAS2023-2026-1745 | May 25, 2026 |
| openssh-server · ol 10 | 0:9.9p1-14.0.1.el10_1 | ELSA-2026-13380 | May 5, 2026 |
| openssh-server · ol 8 | 0:8.0p1-29.0.1.el8_10 | ELSA-2026-13383 | May 5, 2026 |
| openssh-server · ol 9 | 0:8.7p1-49.0.1.el9_7 | ELSA-2026-13381 | May 5, 2026 |
| openssh-server-debuginfo · amzn 2023 | 8.7p1-8.amzn2023.0.18 | ALAS2023-2026-1745 | May 25, 2026 |
| openssh-server-gssapi · Ubuntu 25.10 (questing) | 1:10.0p1-5ubuntu5.4 | openssh-server-gssapi 1:10.0p1-5ubuntu5.4 | Apr 2, 2026 |
| openssh-server-gssapi · Ubuntu 26.04.1 LTS (resolute) | 1:10.2p1-2ubuntu3.2 | openssh-server-gssapi 1:10.2p1-2ubuntu3.2 | Apr 2, 2026 |
| openssh-sftp-server · Ubuntu 18.04.6 LTS (bionic) | 1:7.6p1-4ubuntu0.7+esm6 | openssh-sftp-server 1:7.6p1-4ubuntu0.7+esm6 | Aug 11, 2026 |
| openssh-sftp-server · Ubuntu 20.04 LTS (focal) | 1:8.2p1-4ubuntu0.13+esm3 | openssh-sftp-server 1:8.2p1-4ubuntu0.13+esm3 | Aug 11, 2026 |
| openssh-sftp-server · Ubuntu 22.04.1 LTS (jammy) | 1:8.9p1-3ubuntu0.15 | openssh-sftp-server 1:8.9p1-3ubuntu0.15 | Apr 2, 2026 |
| openssh-sftp-server · Ubuntu 24.04.5 LTS (noble) | 1:9.6p1-3ubuntu13.16 | openssh-sftp-server 1:9.6p1-3ubuntu13.16 | Apr 2, 2026 |
| openssh-sftp-server · Ubuntu 25.10 (questing) | 1:10.0p1-5ubuntu5.4 | openssh-sftp-server 1:10.0p1-5ubuntu5.4 | Apr 2, 2026 |
| openssh-sftp-server · Ubuntu 26.04.1 LTS (resolute) | 1:10.2p1-2ubuntu3.2 | openssh-sftp-server 1:10.2p1-2ubuntu3.2 | Apr 2, 2026 |
| openssh-tests · Ubuntu 20.04 LTS (focal) | 1:8.2p1-4ubuntu0.13+esm3 | openssh-tests 1:8.2p1-4ubuntu0.13+esm3 | Aug 11, 2026 |
| openssh-tests · Ubuntu 22.04.1 LTS (jammy) | 1:8.9p1-3ubuntu0.15 | openssh-tests 1:8.9p1-3ubuntu0.15 | Apr 2, 2026 |
| openssh-tests · Ubuntu 24.04.5 LTS (noble) | 1:9.6p1-3ubuntu13.16 | openssh-tests 1:9.6p1-3ubuntu13.16 | Apr 2, 2026 |
| openssh-tests · Ubuntu 25.10 (questing) | 1:10.0p1-5ubuntu5.4 | openssh-tests 1:10.0p1-5ubuntu5.4 | Apr 2, 2026 |
| openssh-tests · Ubuntu 26.04.1 LTS (resolute) | 1:10.2p1-2ubuntu3.2 | openssh-tests 1:10.2p1-2ubuntu3.2 | Apr 2, 2026 |
| pam_ssh_agent_auth · RHEL 8 | 0:0.10.3-7.29.el8_10 | RHSA-2026:13383 | May 15, 2026 |
| pam_ssh_agent_auth · RHEL 9 | 0:0.10.4-7.7.el9_8 | RHSA-2026:19219 | May 15, 2026 |
| pam_ssh_agent_auth · almalinux 8 | 0.10.3-7.29.el8_10 | ALSA-2026:13383 | May 4, 2026 |
| pam_ssh_agent_auth · almalinux 9 | 0.10.4-7.7.el9_8.alma.1 | ALSA-2026:19219 | May 19, 2026 |
| pam_ssh_agent_auth · amzn 2023 | 0.10.4-4.8.amzn2023.0.18 | ALAS2023-2026-1745 | May 25, 2026 |
| pam_ssh_agent_auth · ol 8 | 0:0.10.3-7.29.0.1.el8_10 | ELSA-2026-13383 | May 5, 2026 |
| pam_ssh_agent_auth · ol 9 | 0:0.10.4-5.49.0.1.el9_7 | ELSA-2026-13381 | May 5, 2026 |
| pam_ssh_agent_auth-debuginfo · amzn 2023 | 0.10.4-4.8.amzn2023.0.18 | ALAS2023-2026-1745 | May 25, 2026 |
| ssh · Ubuntu 18.04.6 LTS (bionic) | 1:7.6p1-4ubuntu0.7+esm6 | ssh 1:7.6p1-4ubuntu0.7+esm6 | Aug 11, 2026 |
| ssh · Ubuntu 20.04 LTS (focal) | 1:8.2p1-4ubuntu0.13+esm3 | ssh 1:8.2p1-4ubuntu0.13+esm3 | Aug 11, 2026 |
| ssh · Ubuntu 22.04.1 LTS (jammy) | 1:8.9p1-3ubuntu0.15 | ssh 1:8.9p1-3ubuntu0.15 | Apr 2, 2026 |
| ssh · Ubuntu 24.04.5 LTS (noble) | 1:9.6p1-3ubuntu13.16 | ssh 1:9.6p1-3ubuntu13.16 | Apr 2, 2026 |
| ssh · Ubuntu 25.10 (questing) | 1:10.0p1-5ubuntu5.4 | ssh 1:10.0p1-5ubuntu5.4 | Apr 2, 2026 |
| ssh · Ubuntu 26.04.1 LTS (resolute) | 1:10.2p1-2ubuntu3.2 | ssh 1:10.2p1-2ubuntu3.2 | Apr 2, 2026 |
| ssh-askpass-gnome · Ubuntu 18.04.6 LTS (bionic) | 1:7.6p1-4ubuntu0.7+esm6 | ssh-askpass-gnome 1:7.6p1-4ubuntu0.7+esm6 | Aug 11, 2026 |
| ssh-askpass-gnome · Ubuntu 20.04 LTS (focal) | 1:8.2p1-4ubuntu0.13+esm3 | ssh-askpass-gnome 1:8.2p1-4ubuntu0.13+esm3 | Aug 11, 2026 |
| ssh-askpass-gnome · Ubuntu 22.04.1 LTS (jammy) | 1:8.9p1-3ubuntu0.15 | ssh-askpass-gnome 1:8.9p1-3ubuntu0.15 | Apr 2, 2026 |
| ssh-askpass-gnome · Ubuntu 24.04.5 LTS (noble) | 1:9.6p1-3ubuntu13.16 | ssh-askpass-gnome 1:9.6p1-3ubuntu13.16 | Apr 2, 2026 |
| ssh-askpass-gnome · Ubuntu 25.10 (questing) | 1:10.0p1-5ubuntu5.4 | ssh-askpass-gnome 1:10.0p1-5ubuntu5.4 | Apr 2, 2026 |
| ssh-askpass-gnome · Ubuntu 26.04.1 LTS (resolute) | 1:10.2p1-2ubuntu3.2 | ssh-askpass-gnome 1:10.2p1-2ubuntu3.2 | Apr 2, 2026 |
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