@rvf/set-get before 7.0.4 Prototype Pollution via setPath Inherited Methods

Advisories

@rvf/set-get before 7.0.4 Prototype Pollution via setPath Inherited Methods

Severity: high
Date: 10/19/2026
Affecting: @rvf/set-get >= 0, < 7.0.4
CVE: CVE-2026-112309
CWE: CWE-1321 Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
CVSS: 8.7
CVSS V4 Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
References: https://github.com/airjp73/rvf/commit/4a5e118667549ac41f065b4cfa80b995841c3811
https://github.com/airjp73/rvf/blob/61172ff01bf1250893108e5c80f35b5ac0388ecb/packages/set-get/src/setPath.ts
https://github.com/airjp73/rvf/blob/61172ff01bf1250893108e5c80f35b5ac0388ecb/packages/core/src/native-form-data/flatten.ts
Credit: Zachariah Mithani
Description: @rvf/set-get before 7.0.4 contains a prototype pollution vulnerability in setPath that allows unauthenticated attackers to overwrite properties of shared built-in functions via inherited Object.prototype methods. Attackers can submit a form field named hasOwnProperty.call through @rvf/core form parsing to replace the shared function property, causing process-wide denial of service until restart.

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