CVE-2026-110928

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{"bugzilla": {"description": "openssh: openssh: authorized_keys restrict does not apply to tunnel forwarding", "id": "2553038", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2553038"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "status": "draft"}, "cwe": "CWE-284", "details": ["A flaw was found in OpenSSH. The authorized_keys \"restrict\" keyword was not applied to tunnel forwarding. When PermitTunnel is enabled, a restricted key can still open a tunnel."], "mitigation": {"lang": "en:us", "value": "No mitigation is required for Red Hat Enterprise Linux. On other builds, keep PermitTunnel set to no."}, "name": "CVE-2026-110928", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "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": "Not affected", "package_name": "openssh", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "openshell", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "openssh", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-10-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-110928\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-110928"], "statement": "Red Hat Enterprise Linux is not affected. The downstream patch for CVE-2026-59999 is stricter than the upstream OpenSSH 10.6 fix for this tunnel restriction. PermitTunnel is disabled by default.", "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": null}], "enrichment": {"confidence": 80.0, "confidence_source": "inferred", "scores": [{"score": 80.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "product": "openssh", "vendor": "openssh"}], "created": "2026-10-17T12:45:08.316139+00:00", "updated": "2026-10-17T14:30:09.593812+00:00", "vendors": ["openssh", "openssh$PRODUCT$openssh"]}