{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:fedoraproject:sssd:2.12.0:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "2.12.0"
              },
              {
                "last_affected": "2.12.0"
              }
            ],
            "source": "CPE_STRING"
          },
          "events": [
            {
              "introduced": "1a1cf163b78ff4768cc8bfc1e631171bc021e2fe"
            },
            {
              "last_affected": "1a1cf163b78ff4768cc8bfc1e631171bc021e2fe"
            }
          ],
          "repo": "https://github.com/sssd/sssd",
          "type": "GIT"
        }
      ],
      "versions": [
        "2.12.0"
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "redhat",
    "cwe_ids": [
      "CWE-476"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90995.json"
  },
  "details": "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_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.",
  "id": "CVE-2026-90995",
  "modified": "2026-10-16T02:31:07.638669480Z",
  "published": "2026-09-14T15:55:32.674Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://access.redhat.com/downloads/content/package-browser/"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/security/cve/CVE-2026-90995"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90995.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90995"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2479464"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Sssd: sssd: local denial of service due to null pointer dereference in pam responder"
}