{
  "schema_version": "1.4.0",
  "id": "GHSA-mmx6-xv2h-w7x8",
  "modified": "2024-02-08T21:30:32Z",
  "published": "2022-05-24T16:56:27Z",
  "aliases": [
    "CVE-2019-16215"
  ],
  "details": "The Markdown parser in Zulip server before 2.0.5 used a regular expression vulnerable to exponential backtracking. A user who is logged into the server could send a crafted message causing the server to spend an effectively arbitrary amount of CPU time and stall the processing of future messages.",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
    }
  ],
  "affected": [],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-16215"
    },
    {
      "type": "WEB",
      "url": "https://github.com/zulip/zulip/commit/5797f013b3be450c146a4141514bda525f2f1b51"
    },
    {
      "type": "WEB",
      "url": "https://blog.zulip.org/2019/09/11/zulip-server-2-0-5-security-release"
    }
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1333"
    ],
    "severity": "MODERATE",
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-09-18T12:15:00Z"
  }
}