{"id":"GHSA-x9vf-53q3-cvx6","summary":"CASL Ability is Vulnerable to Prototype Pollution","details":"CASL Ability, versions 2.4.0 through 6.7.4, contains a prototype pollution vulnerability.","aliases":["CVE-2026-1774"],"modified":"2026-02-11T19:26:17.624339Z","published":"2026-02-10T18:30:38Z","database_specific":{"nvd_published_at":"2026-02-10T16:16:10Z","cwe_ids":["CWE-1321"],"severity":"CRITICAL","github_reviewed":true,"github_reviewed_at":"2026-02-11T19:09:05Z"},"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"}],"affected":[{"package":{"name":"@casl/ability","ecosystem":"npm","purl":"pkg:npm/%40casl/ability"},"ranges":[{"type":"SEMVER","events":[{"introduced":"2.4.0"},{"fixed":"6.7.5"}]}],"database_specific":{"last_known_affected_version_range":"\u003c= 6.7.4","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-x9vf-53q3-cvx6/GHSA-x9vf-53q3-cvx6.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}