{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "3.4.0"
              },
              {
                "fixed": "3.8.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "9b1d1e944e147e8f0cb92877864f71b27b9c6a7d"
            },
            {
              "fixed": "f94c81bec209f658120c418448d0590a549b71df"
            },
            {
              "fixed": "19b86824f5e97eba72b289a81d5b3c1260292ff0"
            }
          ],
          "repo": "https://github.com/corazawaf/coraza",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-r3rm-qphw-hh76"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-693",
      "CWE-755"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41508.json"
  },
  "details": "OWASP Coraza WAF is a golang modsecurity compatible web application firewall library. From 3.4.0 until 3.8.0, the multipart processor in internal/bodyprocessors/multipart.go treats io.ErrUnexpectedEOF as nonfatal without setting MULTIPART_STRICT_ERROR. A remote attacker can submit a truncated multipart body that produces io.ErrUnexpectedEOF, causing parsing to stop without raising the strict-error signal used by the recommended defensive rule. Rules 200002 and 200003 do not fire, allowing multipart parser-disagreement payloads to reach a backend that interprets the truncated body differently. This issue is fixed in version 3.8.0.",
  "id": "CVE-2026-41508",
  "modified": "2026-10-14T10:30:51.273990857Z",
  "published": "2026-10-12T20:01:09.451Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/corazawaf/coraza/releases/tag/v3.8.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41508.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/corazawaf/coraza/security/advisories/GHSA-r3rm-qphw-hh76"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-41508"
    },
    {
      "type": "FIX",
      "url": "https://github.com/corazawaf/coraza/commit/f94c81bec209f658120c418448d0590a549b71df"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "OWASP Coraza WAF: Truncated multipart body bypasses MULTIPART_STRICT_ERROR (rule 200003) via silent io.ErrUnexpectedEOF handling"
}