{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:owasp:modsecurity:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "3.0.0"
              },
              {
                "fixed": "3.0.15"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "CPE_RANGE"
            ]
          },
          "events": [
            {
              "introduced": "c1cd668acb820824e791ba802396c60900eae9c1"
            },
            {
              "fixed": "0fb4aff98b4980cf6426697d5605c424e3d5bb60"
            }
          ],
          "repo": "https://github.com/owasp-modsecurity/modsecurity",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-vwr3-7x7g-7p9w"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-191",
      "CWE-248"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42268.json"
  },
  "details": "ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. From 3.0.0 to before 3.0.15, there is an unhandled exception (std::out_of_range) caused by unsigned integer underflow in libmodsecurity3 if the user (administrator) uses a rule any of @verifySSN, @verifyCPF, or @verifySVNR. This vulnerability is fixed in 3.0.15.",
  "id": "CVE-2026-42268",
  "modified": "2026-07-08T05:37:48.672006655Z",
  "published": "2026-05-12T21:40:19.031Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42268.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/owasp-modsecurity/ModSecurity/security/advisories/GHSA-vwr3-7x7g-7p9w"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42268"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "ModSecurity: Unsigned integer underflow in @verifySSN / @verifyCPF / @verifySVNR operators"
}