CVE-2026-111172
medium@casl/ability 6.7.5 before 7.0.2 contains a prototype pollution vulnerability in rulesToFields() that allows attackers to modify inherited builtins via dotted…
@casl/ability 6.7.5 before 7.0.2 contains a prototype pollution vulnerability in rulesToFields() that allows attackers to modify inherited builtins via dotted condition keys. Attackers controlling rule conditions can supply keys like 'toString.call' to alter shared builtin functions process-wide, causing denial of service for the Node.js process.
CVSS
5.3
5.3 (CVSS v3.1)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H Severity source: NVD CVSS v3.1 (disclosure@vulncheck.com)
Timeline (UTC)
Published: 2026-10-15 19:17
Modified: 2026-10-16 18:25
NVD status: Deferred
Last synced 1 day ago
Verified against the source API 2026-10-27 07:03 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/stalniy/casl disclosure@vulncheck.com
- https://github.com/stalniy/casl/blob/80f2380d03cfe9b162685d510ba8bc0ce83d0598/packages/cas... disclosure@vulncheck.com
- https://github.com/stalniy/casl/commit/58242cb3c7911c8a89bacfb7d732701d81bc1324 disclosure@vulncheck.com
- https://github.com/stalniy/casl/pull/1305 disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/casl-ability-6.7.5-before-7.0.2-prototype-pollution-v... disclosure@vulncheck.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 07:03 UTC · record ↗