{"id":"CVE-2026-104030","title":"A flaw was found in sssd","summary":"A flaw was found in sssd. This vulnerability allows a local user to cause a Denial of Service (DoS) by submitting a specially crafted passkey authentication token that lacks null terminators. The authentication service reads past the end…","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","cwe":["CWE-125"],"vendor":"Red Hat","product":"sssd","affected":["sssd (all versions)","sssd","sssd (all versions)","sssd (all versions)","sssd (all versions)","openshift/ose-rhel-coreos-8 (all versions)","openshift/ose-rhel-coreos-9 (all versions)"],"published":"2026-10-05","updated":"2026-10-06","sourceUpdated":"2026-10-06T15:09:20.387","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-104030","references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-104030","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2479429","label":"secalert@redhat.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-104030.json"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-104030"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-104030"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-06T13:37:19.135952Z"},"ingestedAt":"2026-10-05T19:30:59.997Z","epss":0.00118,"epssPercentile":0.01726,"slug":"CVE-2026-104030","body":"## Overview\n\nA flaw was found in sssd. This vulnerability allows a local user to cause a Denial of Service (DoS) by submitting a specially crafted passkey authentication token that lacks null terminators. The authentication service reads past the end of the provided memory buffer, causing the process to crash and disrupting authentication services.\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 2026-10-05 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-104030.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}