{"id":"CVE-2026-89098","title":"Nfs-utils: nfs-utils: denial of service via assertion failure in fsidd","summary":"A flaw was found in nfs-utils. The fsidd daemon improperly handles input received over its local domain socket by relying on program assertions to verify command arguments. A local user can exploit this vulnerability by sending a malform…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"cna","cwe":["CWE-617"],"vendor":"Red Hat","product":"nfs-utils","affected":["nfs-utils (all versions)","nfs-utils","nfs-utils (all versions)","nfs-utils (all versions)","nfs-utils (all versions)","openshift/ose-rhel-coreos-8 (all versions)","openshift/ose-rhel-coreos-9 (all versions)"],"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-19T14:16:03.828286Z"},"exploitAvailable":true,"published":"2026-10-16","updated":"2026-10-19","sourceUpdated":"2026-10-19T14:19:34.274Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-89098","references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-89098"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2469511","label":"RHBZ#2469511"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89098.json"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89098"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89098"}],"tags":["cve.org","exploit-available","csaf","vex","red-hat"],"epss":0.00147,"epssPercentile":0.03883,"ingestedAt":"2026-10-16T18:43:08.636Z","slug":"CVE-2026-89098","body":"## Overview\n\nA flaw was found in nfs-utils. The fsidd daemon improperly handles input received over its local domain socket by relying on program assertions to verify command arguments. A local user can exploit this vulnerability by sending a malformed request lacking the required arguments to trigger an assertion failure. This causes the daemon to crash, resulting in a Denial of Service (DoS) for filesystem identifier lookup services until restarted.\n\n## Affected\n\n- `nfs-utils (all versions)`\n- `nfs-utils`\n- `nfs-utils (all versions)`\n- `nfs-utils (all versions)`\n- `nfs-utils (all versions)`\n- `openshift/ose-rhel-coreos-8 (all versions)`\n- `openshift/ose-rhel-coreos-9 (all versions)`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, … · updated 2026-10-16 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89098.json)","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[{"seq":224958,"id":"CVE-2026-89098","ts":1792420234690,"field":"exploit_available","old":"false","new":"true"}]}