CVE-2026-111172

MediumCVSS 5.3/10Last modified Oct 16, 2026

Description

@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.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-1321

Affected software

Vendor	Product	Versions
stalniy	@casl/ability	>= 6.7.5, < 7.0.2

References

Timeline

Published: Oct 15, 2026
Last modified: Oct 16, 2026
NVD status: Deferred

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