CVE-2026-73281

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{"bugzilla": {"description": "openssh: OpenSSH: ssh-agent allows remote execution of local operations", "id": "2514327", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2514327"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:N", "status": "draft"}, "cwe": "CWE-266", "details": ["A flaw was found in OpenSSH's `ssh-agent` component. A misinteraction between agent locking and the `session-bind@openssh.com` extension allows operations intended for local execution to be performed remotely. This could enable a remote attacker to add PKCS#11 tokens or utilize keys with destination restrictions, bypassing intended security controls."], "mitigation": {"lang": "en:us", "value": "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."}, "name": "CVE-2026-73281", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "openssh", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "openssh", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "openssh", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "openssh", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "openssh", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "openssh", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "rhcos", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-08-11T19:10:33Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-73281\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-73281\nhttps://www.openssh.org/releasenotes.html#10.5"], "statement": "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. Only OpenSSH versions 8.9 and later contain the vulnerable session-bind@openssh.com extension code. 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.", "threat_severity": "Low"}

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