This page tracks the Ubuntu fix status. The vulnerability itself is described on the main CVE page.
View CVE-2026-73283 →
UBUNTU-CVE-2026-73283
In sshd in OpenSSH before 10.5, the restrict keyword (in authorized_keys) was supposed to be applicable to tunnel forwarding but was not.
Original description
The description as published by the source.
In sshd in OpenSSH before 10.5, the restrict keyword (in authorized_keys) was supposed to be applicable to tunnel forwarding but was not.
Source: OSV.dev (Open Source Vulnerabilities) OSV
Affected packages
Ubuntu:Pro:14.04:LTS
openssh
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:16.04:LTS
openssh
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:FIPS-updates:16.04:LTS
openssh
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:FIPS:16.04:LTS
openssh
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:18.04:LTS
openssh
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:18.04:LTS
openssh-ssh1
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:FIPS-updates:18.04:LTS
openssh
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:FIPS:18.04:LTS
openssh
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:20.04:LTS
openssh
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS
openssh-ssh1
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:FIPS-updates:20.04:LTS
openssh
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:FIPS:20.04:LTS
openssh
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS
openssh
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:8.9p1-3ubuntu0.17"}]}]
Ubuntu:22.04:LTS
openssh-ssh1
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:FIPS-preview:22.04:LTS
openssh
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:FIPS-updates:22.04:LTS
openssh
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
openssh
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:9.6p1-3ubuntu13.19"}]}]
Ubuntu:24.04:LTS
openssh-ssh1
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:FIPS-updates:24.04:LTS
openssh
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:9.6p1-3ubuntu13.19+Fips1"}]}]
Ubuntu:26.10
openssh-ssh1
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.04:LTS
openssh
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:10.2p1-2ubuntu3.6"}]}]
Ubuntu:26.04:LTS
openssh-ssh1
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
References
- advisory ubuntu.com
- report ubuntu.com
- report cve.org
- report openwall.com
- report openssh.org