{
  "credits": [],
  "cve_id": "CVE-2026-1774",
  "cvss": {
    "score": 9.8,
    "vector_string": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  },
  "cvss_severities": {
    "cvss_v3": {
      "score": 9.8,
      "vector_string": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
    },
    "cvss_v4": {
      "score": 0.0,
      "vector_string": null
    }
  },
  "cwes": [
    {
      "cwe_id": "CWE-1321",
      "name": "Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')"
    }
  ],
  "description": "CASL Ability, versions 2.4.0 through 6.7.4, contains a prototype pollution vulnerability.",
  "epss": {
    "percentage": 0.00022,
    "percentile": 0.05574
  },
  "ghsa_id": "GHSA-x9vf-53q3-cvx6",
  "github_reviewed_at": "2026-02-11T19:09:05Z",
  "html_url": "https://github.com/advisories/GHSA-x9vf-53q3-cvx6",
  "identifiers": [
    {
      "type": "GHSA",
      "value": "GHSA-x9vf-53q3-cvx6"
    },
    {
      "type": "CVE",
      "value": "CVE-2026-1774"
    }
  ],
  "nvd_published_at": "2026-02-10T16:16:10Z",
  "published_at": "2026-02-10T18:30:38Z",
  "references": [
    "https://nvd.nist.gov/vuln/detail/CVE-2026-1774",
    "https://cwe.mitre.org/data/definitions/1321.html",
    "https://developer.mozilla.org/en-US/docs/Web/Security/Attacks/Prototype_pollution",
    "https://github.com/stalniy/casl/tree/master/packages/casl-ability",
    "https://www.kb.cert.org/vuls/id/458422",
    "https://github.com/stalniy/casl/pull/1093",
    "https://github.com/stalniy/casl/commit/39da920ec1dfadf3655e28bd0389e960ac6871f4",
    "https://github.com/advisories/GHSA-x9vf-53q3-cvx6"
  ],
  "repository_advisory_url": null,
  "severity": "critical",
  "source_code_location": "https://github.com/stalniy/casl",
  "summary": "CASL Ability is Vulnerable to Prototype Pollution",
  "type": "reviewed",
  "updated_at": "2026-02-11T19:09:09Z",
  "url": "https://api.github.com/advisories/GHSA-x9vf-53q3-cvx6",
  "vulnerabilities": [
    {
      "first_patched_version": "6.7.5",
      "package": {
        "ecosystem": "npm",
        "name": "@casl/ability"
      },
      "vulnerable_functions": [],
      "vulnerable_version_range": ">= 2.4.0, <= 6.7.4"
    }
  ],
  "withdrawn_at": null
}