{"id":"CVE-2026-104046","summary":"Sssd: sssd: denial of service via incomplete identity provider authentication requests","details":"A flaw was found in SSSD (System Security Services Daemon). When Identity Provider (IdP) authentication is enabled, pre-authentication requests retain state in memory without being cleared or timed out. A local attacker can repeatedly initiate authentication flows without completing them, causing unbounded memory consumption. This memory exhaustion can lead to a Denial of Service (DoS) by degrading or terminating SSSD authentication services.","modified":"2026-10-15T02:47:18.361573833Z","published":"2026-10-06T20:03:06.080Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/104xxx/CVE-2026-104046.json","cna_assigner":"redhat","cwe_ids":["CWE-770"]},"references":[{"type":"WEB","url":"https://access.redhat.com/downloads/content/package-browser/"},{"type":"ADVISORY","url":"https://access.redhat.com/security/cve/CVE-2026-104046"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/104xxx/CVE-2026-104046.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-104046"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2478662"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/sssd/sssd","events":[{"introduced":"1a1cf163b78ff4768cc8bfc1e631171bc021e2fe"},{"last_affected":"1a1cf163b78ff4768cc8bfc1e631171bc021e2fe"}],"database_specific":{"source":"CPE_STRING","cpe":"cpe:2.3:a:fedoraproject:sssd:2.12.0:*:*:*:*:*:*:*","extracted_events":[{"introduced":"2.12.0"},{"last_affected":"2.12.0"}]}}],"versions":["2.12.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-104046.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}