{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "2.6.4"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "ab49343b08c933e32de8de78132649f9560a3727"
            }
          ],
          "repo": "https://github.com/westes/flex",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "An issue was discovered in the function mark_beginning_as_normal in nfa.c in flex 2.6.4. There is a stack exhaustion problem caused by the mark_beginning_as_normal function making recursive calls to itself in certain scenarios involving lots of '*' characters. Remote attackers could leverage this vulnerability to cause a denial-of-service.",
  "id": "CVE-2019-6293",
  "modified": "2026-03-13T21:49:33.494521192Z",
  "published": "2019-01-15T00:29:00.523Z",
  "references": [
    {
      "type": "EVIDENCE",
      "url": "https://github.com/westes/flex/issues/414"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}