GitHub Advisoryadvisory · npm
GHSA-x9vf-53q3-cvx6 CASL Ability is Vulnerable to Prototype Pollution
CRITICAL
Official page ↗
- Aliases
- CVE-2026-1774
- Ecosystem
- npm
- Packages
- @casl/ability
- Severity
- Critical
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-1321
- Reviewed
- 2026-02-11
Affected packages
• npm @casl/ability: >= 2.4.0, < 6.7.5 → fixed in 6.7.5
Description
CASL Ability, versions 2.4.0 through 6.7.4, contains a prototype pollution vulnerability.
Related
Alias · CVE (1)
- CVE-2026-1774 CASL Ability, versions 2.4.0 through 6.7.4, contains a prototype pollution vulnerability. vulnerability
Weakness · CWE (1)
- CWE-1321 Improperly Controlled Modification of Object Prototype Attributes weakness
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-1774 advisory
- https://github.com/stalniy/casl/pull/1093 web
- https://github.com/stalniy/casl/commit/39da920ec1dfadf3655e28bd0389e960ac6871f4 web
- https://cwe.mitre.org/data/definitions/1321.html web
- https://developer.mozilla.org/en-US/docs/Web/Security/Attacks/Prototype_pollution web
- https://github.com/stalniy/casl package
- https://github.com/stalniy/casl/tree/master/packages/casl-ability web
- https://www.kb.cert.org/vuls/id/458422 web