{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "cb5caa98562cf06753163f558cbcfe30b8f4673a"
            },
            {
              "fixed": "af810a72c09944e884ec695e8dbf1702a4f424ae"
            }
          ],
          "repo": "https://github.com/illumos/illumos-gate",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "illumos",
    "cwe_ids": [
      "CWE-772"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/104xxx/CVE-2026-104112.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "r151058"
          },
          {
            "fixed": "r151058w"
          },
          {
            "introduced": "r151056"
          },
          {
            "fixed": "r151056aw"
          },
          {
            "introduced": "r151054"
          },
          {
            "fixed": "r151054bw"
          },
          {
            "introduced": "any"
          },
          {
            "fixed": "r151054"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "A missing release of resources in the illumos name service cache daemon (nscd) allows a local user to exhaust kernel memory. The nscd door server procedure, switcher() in usr/src/cmd/nscd/nscd_frontend.c, does not close file descriptors that are passed with a door call but not used by the request, and the main nscd door at /var/run/name_service_door accepts passed descriptors from any user in its zone. Because nscd also runs with an unlimited file descriptor limit, an unprivileged local user, including one in a non-global zone, can repeatedly pass a descriptor to its zone's nscd in a door_call() loop, causing the file descriptor table of nscd to grow without bound in kernel memory. This causes a denial of service of nscd and can render processes in all zones on the host unresponsive. The flaw has existed since 2006 (illumos-gate commit cb5caa98), and affects any illumos distribution prior to illumos-gate commit af810a72.",
  "id": "CVE-2026-104112",
  "modified": "2026-10-11T02:30:14.542294392Z",
  "published": "2026-10-09T14:19:29.399Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://illumos.org"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/104xxx/CVE-2026-104112.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-104112"
    },
    {
      "type": "REPORT",
      "url": "https://illumos.org/issues/18494"
    },
    {
      "type": "FIX",
      "url": "https://github.com/illumos/illumos-gate/commit/af810a72c09944e884ec695e8dbf1702a4f424ae"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/illumos/illumos-gate"
    },
    {
      "type": "ARTICLE",
      "url": "https://illumos.topicbox.com/groups/developer/T3b859664594b7762/cve-2026-104112-to-cve-2026-104117-denial-of-service-and-missing-authorization-in-door-servers"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:P",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Missing release of passed file descriptors in illumos nscd allows local users to exhaust kernel memory"
}