CVE-2026-59999

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{"bugzilla": {"description": "openssh: OpenSSH sshd: Security bypass due to incorrect handling of forwarding and tunneling options", "id": "2497942", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2497942"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.9", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N", "status": "draft"}, "cwe": "CWE-358", "details": ["A flaw was found in `sshd`, the OpenSSH server daemon. When `DisableForwarding=yes` is configured to prevent network traffic forwarding, it incorrectly fails to take precedence over `PermitTunnel=yes`. This allows a remote attacker to bypass intended security restrictions and establish a tunnel, potentially leading to unauthorized network access or circumvention of security policies, even when forwarding is explicitly disabled."], "name": "CVE-2026-59999", "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": "Fix deferred", "package_name": "openssh", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "openssh", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "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": "Fix deferred", "impact": "moderate", "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": "2026-07-08T00:13:08Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-59999\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-59999\nhttps://marc.info/?l=openssh-unix-dev&m=178333966933090&w=2\nhttps://www.openssh.org/releasenotes.html#10.4p1\nhttps://www.openwall.com/lists/oss-security/2026/07/06/5"], "threat_severity": "Moderate"}

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