Vulnerability · Published Aug 11, 2026 · Assigned by mitre

CVE-2026-73283

Low 2.5

In plain English

A low-severity security flaw in OpenSSH from OpenBSD. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 4% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)2.5Low
Exploit odds (30 days)0.1%top 95.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In sshd in OpenSSH before 10.5, the restrict keyword (in authorized_keys) was supposed to be applicable to tunnel forwarding but was not.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:10openssh9.9p1-27.el10_2.alma.1ALSA-2026:69129
AlmaLinux:8openssh8.0p1-34.el8_10ALSA-2026:88211
AlmaLinux:9openssh9.9p1-11.el9_8.alma.1ALSA-2026:69130
AlmaLinux:10openssh-askpass9.9p1-27.el10_2.alma.1ALSA-2026:69129
AlmaLinux:8openssh-askpass8.0p1-34.el8_10ALSA-2026:88211
AlmaLinux:9openssh-askpass9.9p1-11.el9_8.alma.1ALSA-2026:69130
AlmaLinux:8openssh-cavs8.0p1-34.el8_10ALSA-2026:88211
AlmaLinux:10openssh-clients9.9p1-27.el10_2.alma.1ALSA-2026:69129
AlmaLinux:8openssh-clients8.0p1-34.el8_10ALSA-2026:88211
AlmaLinux:9openssh-clients9.9p1-11.el9_8.alma.1ALSA-2026:69130
AlmaLinux:10openssh-keycat9.9p1-27.el10_2.alma.1ALSA-2026:69129
AlmaLinux:8openssh-keycat8.0p1-34.el8_10ALSA-2026:88211
AlmaLinux:9openssh-keycat9.9p1-11.el9_8.alma.1ALSA-2026:69130
AlmaLinux:10openssh-keysign9.9p1-27.el10_2.alma.1ALSA-2026:69129
AlmaLinux:8openssh-ldap8.0p1-34.el8_10ALSA-2026:88211
AlmaLinux:10openssh-server9.9p1-27.el10_2.alma.1ALSA-2026:69129
AlmaLinux:8openssh-server8.0p1-34.el8_10ALSA-2026:88211
AlmaLinux:9openssh-server9.9p1-11.el9_8.alma.1ALSA-2026:69130
AlmaLinux:8pam_ssh_agent_auth0.10.3-8.34.el8_10ALSA-2026:88211
AlmaLinux:9pam_ssh_agent_auth0.10.4-8.11.el9_8.alma.1ALSA-2026:69130
Alpine:v3.24openssh10.3_p1-r1ALPINE-CVE-2026-73283
Debian:12opensshno fix listedDEBIAN-CVE-2026-73283
Debian:13opensshno fix listedDEBIAN-CVE-2026-73283
Debian:14openssh1:10.5p1-1DEBIAN-CVE-2026-73283
Debian:14openssh-gssapi1:10.5p1-1DEBIAN-CVE-2026-73283
Rocky Linux:10openssh0:9.9p1-27.el10_2.rocky.0.1RLSA-2026:69129
Rocky Linux:8openssh0:8.0p1-34.el8_10RLSA-2026:88211
Rocky Linux:9openssh0:9.9p1-11.el9_8.rocky.0.1RLSA-2026:69130
Ubuntu:22.04:LTSopenssh1:8.9p1-3ubuntu0.17USN-8721-1
Ubuntu:22.04:LTSopenssh1:8.9p1-3ubuntu0.17UBUNTU-CVE-2026-73283
Ubuntu:24.04:LTSopenssh1:9.6p1-3ubuntu13.19USN-8721-1
Ubuntu:24.04:LTSopenssh1:9.6p1-3ubuntu13.19UBUNTU-CVE-2026-73283
Ubuntu:26.04:LTSopenssh1:10.2p1-2ubuntu3.6USN-8721-1
Ubuntu:26.04:LTSopenssh1:10.2p1-2ubuntu3.6UBUNTU-CVE-2026-73283
Ubuntu:22.04:LTSopenssh-ssh1no fix listedUBUNTU-CVE-2026-73283
Ubuntu:24.04:LTSopenssh-ssh1no fix listedUBUNTU-CVE-2026-73283
Ubuntu:26.04:LTSopenssh-ssh1no fix listedUBUNTU-CVE-2026-73283
Ubuntu:26.10openssh-ssh1no fix listedUBUNTU-CVE-2026-73283

Affected products (as reported)

VendorProductVersions
OpenBSD OpenSSH 0 – before 10.5

Weakness: CWE-670 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N

References