Low [CVE-2026-73281] ssh-agent allows remote execution of local operations
This low-severity Red Hat Linux advisory covers CVE-2026-73281 affecting Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat Hardened Images.
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Summary
In ssh-agent in OpenSSH before 10.5, some operations can occur remotely but were intended to occur only locally, including operations that add tokens or use keys. This is caused by misinteraction between agent locking and the session-bind@openssh.com extension.
This could enable a remote attacker to add PKCS#11 tokens or utilize keys with destination restrictions, bypassing intended security controls. Red Hat has determined that this vulnerability has limited impact.
Exploitation requires an authenticated SSH session with agent forwarding enabled and the agent in a locked state. Red Hat Enterprise Linux 6, 7, 8, and RHEL 9 through 9.6 ship OpenSSH versions prior to 8.9 and are not affected.
Red Hat may apply this fix in a future update for affected products. Red Hat severity: Low — CVSS 3.5 (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:N).
Weakness: CWE-266. Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 9; Red Hat Hardened Images; Red Hat OpenShift Container Platform 4.
Red Hat does not currently list a fixing RHSA for this CVE.
Affected products named by the advisory: Red Hat package: openssh.
- < 10.5
Official advisory · high-confidence parse· fetched 25 days ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 25 days ago·verify at source
Mitigation checklist
- Avoid using ssh-agent forwarding to untrusted remote hosts, or disable agent forwarding entirely by removing `ForwardAgent yes` from SSH configuration. If agent forwarding is required, avoid locking the agent while forwarded sessions are active.
Official advisory · high-confidence parse· fetched 25 days ago·verify at source
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