CVE-2026-110929

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{"acknowledgement": "Red Hat would like to thank Dark River and sn0x-sharma for reporting this issue.", "bugzilla": {"description": "openssh: openssh: post-authentication process retains root without file-descriptor passing", "id": "2553039", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2553039"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.1", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N", "status": "draft"}, "cwe": "CWE-250", "details": ["A flaw was found in OpenSSH. On platforms that cannot pass file descriptors and that need root to allocate a terminal, the post-authentication session process keeps root privilege. An authenticated user can then perform actions as root, including privileged socket connections and binding forwards to low-numbered ports."], "mitigation": {"lang": "en:us", "value": "No mitigation is required for Red Hat Enterprise Linux. Affected non-Linux builds should be upgraded to OpenSSH 10.6, which disables GatewayPorts and StreamLocalForwarding on those platforms."}, "name": "CVE-2026-110929", "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-2026-110929\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-110929"], "statement": "Red Hat Enterprise Linux is not affected. On Linux, the post-authentication process drops to the logged-in user. The flaw applies to QNX 6, SCO OpenServer 5, and OpenSSH builds made with --disable-fd-passing.", "threat_severity": "Important"}

{"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": "2026-10-17T13:45:08.995051+00:00", "updated": "2026-10-17T15:30:06.831109+00:00", "vendors": ["openssh", "openssh$PRODUCT$openssh"]}