{"id":"CVE-2026-90995","title":"A flaw was found in SSSD (System Security Services Daemon)","summary":"A flaw was found in SSSD (System Security Services Daemon). A local attacker with privileges to connect to the PAM (Pluggable Authentication Modules) responder socket can send a specially crafted protocol request. If the `pam_app_service…","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-476"],"vendor":"fedoraproject","product":"sssd","affected":["sssd = 2.12.0","openshift_container_platform = 4.0","enterprise_linux = 7.0","enterprise_linux = 8.0","enterprise_linux = 9.0","enterprise_linux = 10.0"],"published":"2026-09-14","updated":"2026-10-14","sourceUpdated":"2026-10-14T18:05:58.347","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90995","references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-90995","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2479464","label":"secalert@redhat.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90995.json"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-90995"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90995"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"epss":0.00135,"epssPercentile":0.02973,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-15T13:25:26.711502Z"},"ingestedAt":"2026-09-14T17:11:16.569Z","slug":"CVE-2026-90995","body":"## Overview\n\nA flaw was found in SSSD (System Security Services Daemon). A local attacker with privileges to connect to the PAM (Pluggable Authentication Modules) responder socket can send a specially crafted protocol request. If the `pam_app_services` configuration is enabled and the service item is omitted from the request, a NULL pointer dereference can occur. This vulnerability leads to a denial of service, causing the PAM responder to crash and disrupt authentication services.\n\n## Affected\n\n- `sssd = 2.12.0`\n- `openshift_container_platform = 4.0`\n- `enterprise_linux = 7.0`\n- `enterprise_linux = 8.0`\n- `enterprise_linux = 9.0`\n- `enterprise_linux = 10.0`\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 2026-09-14 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90995.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}