{"id":"CVE-2026-16445","aliases":[],"title":"Dracut: dracut: root code execution via dhcp options command injection in networkmanager initrd module","titleSource":"redhat","descriptionSource":"redhat","products":[{"vendor":"Red Hat","name":"Red Hat Enterprise Linux 8","platforms":[],"versions":[{"version":"0:049-244.git20260529.el8_10","status":"unaffected","lessThan":"*","versionType":"rpm"}],"defaultStatus":"affected","source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-16445"},{"vendor":"Red Hat","name":"Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support","platforms":[],"versions":[{"version":"0:049-138.git20220131.el8_4.1","status":"unaffected","lessThan":"*","versionType":"rpm"}],"defaultStatus":"affected","source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-16445"},{"vendor":"Red Hat","name":"Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On","platforms":[],"versions":[{"version":"0:049-138.git20220131.el8_4.1","status":"unaffected","lessThan":"*","versionType":"rpm"}],"defaultStatus":"affected","source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-16445"},{"vendor":"Red Hat","name":"Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support","platforms":[],"versions":[{"version":"0:049-203.git20220511.el8_6.1","status":"unaffected","lessThan":"*","versionType":"rpm"}],"defaultStatus":"affected","source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-16445"},{"vendor":"Red Hat","name":"Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On","platforms":[],"versions":[{"version":"0:049-203.git20220511.el8_6.1","status":"unaffected","lessThan":"*","versionType":"rpm"}],"defaultStatus":"affected","source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-16445"},{"vendor":"Red Hat","name":"Red Hat Enterprise Linux 8.8 Telecommunications Update Service","platforms":[],"versions":[{"version":"0:049-223.git20230119.el8_8.1","status":"unaffected","lessThan":"*","versionType":"rpm"}],"defaultStatus":"affected","source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-16445"},{"vendor":"Red Hat","name":"Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions","platforms":[],"versions":[{"version":"0:049-223.git20230119.el8_8.1","status":"unaffected","lessThan":"*","versionType":"rpm"}],"defaultStatus":"affected","source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-16445"},{"vendor":"Red Hat","name":"Red Hat OpenShift Container Platform 4.12","platforms":[],"versions":[{"version":"412.86.202610250235-0","status":"unaffected","lessThan":"*","versionType":"rpm"}],"defaultStatus":"affected","source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-16445"},{"vendor":"Red Hat","name":"Red Hat Hardened Images","platforms":[],"versions":[{"version":"109-7.hum1","status":"unaffected","lessThan":"*","versionType":"rpm"}],"defaultStatus":"affected","source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-16445"},{"vendor":"Red Hat","name":"Red Hat Enterprise Linux 10","platforms":[],"versions":[],"defaultStatus":"unaffected","source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-16445"},{"vendor":"Red Hat","name":"Red Hat Enterprise Linux 6","platforms":[],"versions":[],"defaultStatus":"unaffected","source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-16445"},{"vendor":"Red Hat","name":"Red Hat Enterprise Linux 7","platforms":[],"versions":[],"defaultStatus":"unaffected","source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-16445"},{"vendor":"Red Hat","name":"Red Hat Enterprise Linux 9","platforms":[],"versions":[],"defaultStatus":"unaffected","source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-16445"}],"remediation":[{"text":"Avoid using the root=dhcp/netroot=dhcp/root=dhcp6/netroot=dhcp6 kernel command-line options — these cause dracut to trust the DHCP server's root-path option to determine the boot target. Configuring the netroot target explicitly on the kernel/PXE command line instead (e.g. netroot=nfs:<server>:<path> or netroot=iscsi:... with a literal value).","source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-16445"}],"description":"A flaw was found in dracut. A remote attacker on the adjacent network can exploit this vulnerability by providing specially crafted DHCP options, such as a malicious root-path, next-server, or bootfile name, to a system using dracut's NetworkManager-based initrd network module. These options are improperly handled and written into a temporary shell script without proper escaping, leading to command injection. This allows the attacker to achieve root code execution within the initramfs during system boot.","severity":"high","score":7.5,"published":"2026-07-21T12:51:08.650Z","modified":"2026-10-27T21:55:01.069Z","withdrawn":false,"knownExploited":false,"affected":[],"references":["https://access.redhat.com/errata/RHSA-2026:26534","https://access.redhat.com/errata/RHSA-2026:40700","https://access.redhat.com/errata/RHSA-2026:61252","https://access.redhat.com/errata/RHSA-2026:69118","https://access.redhat.com/errata/RHSA-2026:69119","https://access.redhat.com/errata/RHSA-2026:90272","https://access.redhat.com/security/cve/CVE-2026-16445","https://bugzilla.redhat.com/show_bug.cgi?id=2459963","https://bugzilla.redhat.com/show_bug.cgi?id=2503147","https://github.com/dracutdevs/dracut/commit/e509c638e6"],"sources":[{"name":"CVE","id":"CVE-2026-16445","modified":"2026-10-27T21:55:01.069Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-16445"}],"assessments":[{"source":"redhat","vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","score":7.5}],"sourceAffected":[],"kev":{"status":"not-listed","checkedAt":"2026-10-28T14:30:35.755Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}