GHSA-X9VF-53Q3-CVX6

Vulnerability from github – Published: 2026-02-10 18:30 – Updated: 2026-02-11 19:09
VLAI?
Summary
CASL Ability is Vulnerable to Prototype Pollution
Details

CASL Ability, versions 2.4.0 through 6.7.4, contains a prototype pollution vulnerability.

Severity ?
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 6.7.4"
      },
      "package": {
        "ecosystem": "npm",
        "name": "@casl/ability"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.4.0"
            },
            {
              "fixed": "6.7.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-1774"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1321"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-02-11T19:09:05Z",
    "nvd_published_at": "2026-02-10T16:16:10Z",
    "severity": "CRITICAL"
  },
  "details": "CASL Ability, versions 2.4.0 through 6.7.4, contains a prototype pollution vulnerability.",
  "id": "GHSA-x9vf-53q3-cvx6",
  "modified": "2026-02-11T19:09:05Z",
  "published": "2026-02-10T18:30:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-1774"
    },
    {
      "type": "WEB",
      "url": "https://github.com/stalniy/casl/pull/1093"
    },
    {
      "type": "WEB",
      "url": "https://github.com/stalniy/casl/commit/39da920ec1dfadf3655e28bd0389e960ac6871f4"
    },
    {
      "type": "WEB",
      "url": "https://cwe.mitre.org/data/definitions/1321.html"
    },
    {
      "type": "WEB",
      "url": "https://developer.mozilla.org/en-US/docs/Web/Security/Attacks/Prototype_pollution"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/stalniy/casl"
    },
    {
      "type": "WEB",
      "url": "https://github.com/stalniy/casl/tree/master/packages/casl-ability"
    },
    {
      "type": "WEB",
      "url": "https://www.kb.cert.org/vuls/id/458422"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "CASL Ability is Vulnerable to Prototype Pollution"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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