{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "source": "REFERENCES"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "49dee5cad329cfed310c1682703df7daa47df31a"
            },
            {
              "fixed": "2aa431eaf732c1a7e9a966ea12049fc001d91e04"
            }
          ],
          "repo": "https://github.com/gpac/gpac",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulDB",
    "cwe_ids": [
      "CWE-617"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90683.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "f1219cde"
          },
          {
            "last_affected": "f1219cde"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "A vulnerability was detected in GPAC up to f1219cde. Affected is the function gf_node_unregister of the file scenegraph/base_scenegraph.c of the component MP4Box. Performing a manipulation results in reachable assertion. Attacking locally is a requirement. The exploit is now public and may be used. Upgrading to version abi-16.23 is able to address this issue. The patch is named 49dee5cad329cfed310c1682703df7daa47df31a. It is advisable to upgrade the affected component. This is not a duplicate of CVE-2021-46237 or CVE-2021-46234.",
  "id": "CVE-2026-90683",
  "modified": "2026-09-17T03:30:28.149409186Z",
  "published": "2026-09-14T04:45:12.988Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/gpac/gpac/"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90683.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90683"
    },
    {
      "type": "ADVISORY",
      "url": "https://vuldb.com/cve/CVE-2026-90683"
    },
    {
      "type": "ADVISORY",
      "url": "https://vuldb.com/submit/913780"
    },
    {
      "type": "ADVISORY",
      "url": "https://vuldb.com/vuln/403216"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/gpac/gpac/issues/3823"
    },
    {
      "type": "REPORT",
      "url": "https://vuldb.com/vuln/403216/cti"
    },
    {
      "type": "FIX",
      "url": "https://github.com/gpac/gpac/commit/49dee5cad329cfed310c1682703df7daa47df31a"
    },
    {
      "type": "FIX",
      "url": "https://github.com/gpac/gpac/releases/tag/abi-16.23"
    },
    {
      "type": "EVIDENCE",
      "url": "https://github.com/r1ck9-2q/cve_summit/blob/main/Vuln%20GPAC%20MP4Box%20Assertion%20Failure%20assert(num_instances).md"
    }
  ],
  "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:L/SC:N/SI:N/SA:N/E:P",
      "type": "CVSS_V4"
    }
  ],
  "summary": "GPAC MP4Box base_scenegraph.c gf_node_unregister assertion"
}