Security advisory

{
  "id": "54c8cb7b5a8a94ce87cde7e9b49b627cd38a23e40efc6daff775c1407574308d",
  "url": "https://osv.dev/vulnerability/CVE-2021-46461",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-46461",
    "summary": "njs through 0.7.0, used in NGINX, was discovered to contain an out-of-bounds array access via njs_vmcode_typeof in /src/njs_vmcode.c.",
    "evidence": "osv:CVE-2021-46461",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2021-46461",
      "aliases": [
        "CVE-2021-46461"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/nginx/njs",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "376b540b9692c61c1a17b78c65192287b60d8e15"
                },
                {
                  "fixed": "d457c9545e7e71ebb5c0479eb16b9d33175855e2"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:nginx:njs:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "0.7.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "d457c9545e7e71ebb5c0479eb16b9d33175855e2"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.7.0",
            "0.6.2",
            "0.6.1",
            "0.6.0",
            "0.5.3",
            "0.5.2",
            "0.5.1",
            "0.5.0",
            "0.4.4",
            "0.4.3",
            "0.4.2",
            "0.4.1",
            "0.4.0",
            "0.3.9",
            "0.3.8",
            "0.3.7",
            "0.3.6",
            "0.3.5",
            "0.3.4",
            "0.3.3",
            "0.3.2",
            "0.3.1",
            "0.3.0",
            "0.2.8",
            "0.2.7",
            "0.2.6",
            "0.2.5",
            "0.2.4",
            "0.2.3",
            "0.2.2",
            "0.2.1",
            "0.2.0",
            "0.1.15",
            "0.1.14",
            "0.1.13",
            "0.1.12",
            "0.1.11",
            "0.1.10",
            "0.1.9",
            "0.1.8",
            "0.1.7",
            "0.1.6",
            "0.1.5",
            "0.1.4",
            "0.1.3",
            "0.1.2",
            "0.1.1",
            "0.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-46461.json",
            "vanir_signatures": [
              {
                "id": "CVE-2021-46461-501009d4",
                "digest": {
                  "length": 792,
                  "function_hash": "9392468354405660206887983019685688929"
                },
                "source": "https://github.com/nginx/njs/commit/d457c9545e7e71ebb5c0479eb16b9d33175855e2",
                "target": {
                  "file": "src/njs_vmcode.c",
                  "function": "njs_vmcode_typeof"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2021-46461-f49df53d",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "98564410132262592793995109969660261770",
                    "147510133104760375677726348496773441530",
                    "205029457978295310357353176216532695880"
                  ]
                },
                "source": "https://github.com/nginx/njs/commit/d457c9545e7e71ebb5c0479eb16b9d33175855e2",
                "target": {
                  "file": "src/test/njs_unit_test.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T14:31:39Z"
          }
        }
      ],
      "modified": "2026-10-20T14:31:39.355031244Z",
      "provider": "osv",
      "references": [
        "https://security.netapp.com/advisory/ntap-20220303-0007/",
        "https://github.com/nginx/njs/commit/d457c9545e7e71ebb5c0479eb16b9d33175855e2",
        "https://github.com/nginx/njs/issues/450"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-46461",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 389700,
  "published_at": "2022-02-14T22:15:07.717+00:00"
}