critical9.8
CVE-2026-1774
CASL Ability is Vulnerable to Prototype Pollution
Impact
CASL Ability, versions 2.4.0 through 6.7.4, contains a prototype pollution vulnerability.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | @casl/ability | >= 2.4.0, <= 6.7.4 | 6.7.5 |
Affected products
| Product | Affected versions |
|---|---|
| CASL Ability, Versions 2.4.0 | through 6.7.4 |
Versions were read from the advisory text. No structured product data has been published for this record yet.
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- 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/advisories/GHSA-x9vf-53q3-cvx6
- https://nvd.nist.gov/vuln/detail/CVE-2026-1774
- https://github.com/stalniy/casl/pull/1093
- https://github.com/stalniy/casl/commit/39da920ec1dfadf3655e28bd0389e960ac6871f4