Security advisory

{
  "id": "bff91f04d5c38460a5544e79b43f518bb420d65c3606efbbf66cd4f665ba8066",
  "url": "https://osv.dev/vulnerability/CVE-2020-36661",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-36661",
    "summary": "A vulnerability was found in Kong lua-multipart 0.5.8-1. It has been declared as problematic. This vulnerability affects the function is_header of the file src/multipart.lua. The manipulation leads to inefficient regular expression complexity. Upgrading to version 0.5.9-1 is able to address this issue. The patch is identified as d632e5df43a2928fd537784a99a79dec288bf01b. It is recommended to upgrade the affected component. VDB-220642 is the identifier assigned to this vulnerability.",
    "evidence": "osv:CVE-2020-36661",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-36661",
      "aliases": [
        "CVE-2020-36661"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/kong/lua-multipart",
              "type": "GIT",
              "events": [
                {
                  "introduced": "ce365f63cf9a9f31e8e12bacc75f4e3b6e91f756"
                },
                {
                  "last_affected": "ce365f63cf9a9f31e8e12bacc75f4e3b6e91f756"
                },
                {
                  "fixed": "d632e5df43a2928fd537784a99a79dec288bf01b"
                },
                {
                  "fixed": "46d7804efa69146abc39415254687b5a7b507fe1"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:konghq:multipart:0.5.8-1:*:*:*:*:lua:*:*",
                    "range": [
                      {
                        "introduced": "0.5.8-1"
                      },
                      {
                        "last_affected": "0.5.8-1"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "range": [
                      {
                        "fixed": "d632e5df43a2928fd537784a99a79dec288bf01b"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "46d7804efa69146abc39415254687b5a7b507fe1"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "0.5.9-1"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.5.8-1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-36661.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:21.814612718Z",
      "provider": "osv",
      "references": [
        "https://vuldb.com/?id.220642",
        "https://vuldb.com/?ctiid.220642",
        "https://github.com/Kong/lua-multipart/commit/d632e5df43a2928fd537784a99a79dec288bf01b",
        "https://github.com/Kong/lua-multipart/pull/34",
        "https://github.com/Kong/lua-multipart/releases/tag/0.5.9-1"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-36661",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 385185,
  "published_at": "2023-02-12T21:15:10.65+00:00"
}