Security advisory

{
  "id": "36cd1790e0a62ca1aff16e1b24c273abb2f95f944ef1140e2a561e85fe13ff52",
  "url": "https://osv.dev/vulnerability/CVE-2019-25043",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-25043",
    "summary": "ModSecurity 3.x before 3.0.4 mishandles key-value pair parsing, as demonstrated by a \"string index out of range\" error and worker-process crash for a \"Cookie: =abc\" header.",
    "evidence": "osv:CVE-2019-25043",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2019-25043",
      "aliases": [
        "CVE-2019-25043"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/owasp-modsecurity/ModSecurity",
              "type": "GIT",
              "events": [
                {
                  "introduced": "c1cd668acb820824e791ba802396c60900eae9c1"
                },
                {
                  "fixed": "753145fbd1d6751a6b14fdd700921eb3cc3a1d35"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:owasp:modsecurity:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.0.0"
                      },
                      {
                        "fixed": "3.0.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v3.0.3",
            "v3.0.2",
            "v3.0.1",
            "v3.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-25043.json"
          }
        },
        {
          "ranges": [
            {
              "repo": "https://github.com/owasp-modsecurity/modsecurity",
              "type": "GIT",
              "events": [
                {
                  "introduced": "c1cd668acb820824e791ba802396c60900eae9c1"
                },
                {
                  "fixed": "753145fbd1d6751a6b14fdd700921eb3cc3a1d35"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:owasp:modsecurity:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.0.0"
                      },
                      {
                        "fixed": "3.0.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v3.0.3",
            "v3.0.2",
            "v3.0.1",
            "v3.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-25043.json"
          }
        }
      ],
      "modified": "2026-10-24T10:47:25.692992565Z",
      "provider": "osv",
      "references": [
        "https://github.com/SpiderLabs/ModSecurity/issues/2566"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2019-25043",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 441212,
  "published_at": "2021-05-06T17:15:07.87+00:00"
}