Security exception in jflex.core.NFA.insertNFA

{
  "id": "abb427e6cb02b3931c6cd9946b31e2da07d9b6fd3363a2d8d1493af15335797f",
  "url": "https://osv.dev/vulnerability/OSV-2024-668",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Security exception in jflex.core.NFA.insertNFA",
    "summary": "OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=70514 ``` Crash type: Security exception Crash state: jflex.core.NFA.insertNFA java.base/java.lang.ClassLoader.defineClass1 java.base/java.lang.ClassLoader.defineClass ```",
    "evidence": "osv:OSV-2024-668",
    "products": [
      {
        "name": {
          "value": "jflex",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "OSV-2024-668",
      "aliases": [
        "OSV-2024-668"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/jflex-de/jflex",
              "type": "GIT",
              "events": [
                {
                  "introduced": "4c942c5ad702199be7bea2876a01c84ef6c1fd23"
                }
              ]
            }
          ],
          "package": {
            "name": "jflex",
            "purl": "pkg:generic/jflex",
            "ecosystem": "OSS-Fuzz"
          },
          "database_specific": {
            "source": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/jflex/OSV-2024-668.yaml"
          },
          "ecosystem_specific": {
            "severity": "LOW"
          }
        }
      ],
      "modified": "2026-10-19T15:09:29.677469Z",
      "provider": "osv",
      "references": [
        "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=70514"
      ]
    },
    "related_cves": [],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 375263,
  "published_at": "2024-07-20T00:01:48.807354+00:00"
}