CVE-2026-1774
CASL Ability, versions 2.4.0 through 6.7.4, contains a prototype pollution vulnerability.
CASL Ability, versions 2.4.0 through 6.7.4, contains a prototype pollution vulnerability.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
CASL Ability, versions 2.4.0 through 6.7.4, contains a prototype pollution vulnerability.
CASL Ability, versions 2.4.0 through 6.7.4, contains a prototype pollution vulnerability.
- Record
CVE-2026-1774- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
EUVDEUVD-2026-7071
CASL Ability, versions 2.4.0 through 6.7.4, contains a prototype pollution vulnerability.
- Record
EUVD-2026-7071- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-x9vf-53q3-cvx6
CASL Ability is Vulnerable to Prototype Pollution
CASL Ability, versions 2.4.0 through 6.7.4, contains a prototype pollution vulnerability.
- Record
GHSA-x9vf-53q3-cvx6- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-1321
- Updated
- 2026-11-02
NVD
CASL Ability, versions 2.4.0 through 6.7.4, contains a prototype pollution vulnerability.
- Record
CVE-2026-1774- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVGHSA-x9vf-53q3-cvx6
CASL Ability is Vulnerable to Prototype Pollution
CASL Ability, versions 2.4.0 through 6.7.4, contains a prototype pollution vulnerability.
- Record
GHSA-x9vf-53q3-cvx6- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-1321
- Updated
- 2026-11-02
OSVROOT-APP-NPM-CVE-2026-1774No score
CVE-2026-1774 in @casl/ability - Patched by Root
Root has patched CVE-2026-1774 in the @casl/ability package for Root:npm. Multiple fixed versions available.
- Record
ROOT-APP-NPM-CVE-2026-1774- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
@casl/abilitynpm | 2.4.0 to 6.7.4 | 6.7.5 |
@casl/abilitynpm | 2.4.0 up to 6.7.5 | 6.7.5 |
@casl/abilityRoot:npm | before 6.7.2-aikido.1 | 6.7.2-aikido.1 |
@rootio/casl__abilityRoot:npm | before 6.7.2-root.io.1 | 6.7.2-root.io.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-1774 is a critical vulnerability (CVSS 9.8) in Casl Ability Ability, published February 10, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.70%, the 53rd percentile. Fixed in @casl/ability 6.7.5.
References
github.com/stalniy/casl/tree/master/packages/casl-ability
cwe.mitre.org/data/definitions/1321.html
developer.mozilla.org/en-US/docs/Web/Security/Attacks/Prototype_pollution
kb.cert.org/vuls/id/458422
nvd.nist.gov/vuln/detail/CVE-2026-1774