Prototype pollution in aurelia-path

高 7.5CVE-2021-41097 · GHSA-3c9c-2p65-qvwv · 27/09/2021 公開 · 17/06/2026 更新

要点

CVE-2021-41097 は aurelia-path (bluespire), aurelia-path に影響する深刻度「高」 (CVSS 7.5) の脆弱性です。
今後30日間に悪用される確率（EPSS）：4.9%（全脆弱性の 92.1% より高い）。
対処：1.1.7 以降に更新してください。

パッケージ	影響を受けるバージョン	修正済みバージョン
aurelia-path bluespire	`< 1.1.7`	`1.1.7`
aurelia-path npm	`< 1.1.7`	`1.1.7`

概要

Impact

The vulnerability exposes Aurelia application that uses aurelia-path package to parse a string. The majority of this will be Aurelia applications that employ the aurelia-router package. An example is this could allow an attacker to change the prototype of base object class Object by tricking an application to parse the following URL: https://aurelia.io/blog/?__proto__[asdf]=asdf

Patches

The problem should be patched in version 1.1.7. Any version earlier than this is vulnerable.

Workarounds

A partial work around is to free the Object prototype:

Object.freeze(Object.prototype)

NVD の説明

aurelia-path is part of the Aurelia platform and contains utilities for path manipulation. There is a prototype pollution vulnerability in aurelia-path before version 1.1.7. The vulnerability exposes Aurelia application that uses `aurelia-path` package to parse a string. The majority of this will be Aurelia applications that employ the `aurelia-router` package. An example is this could allow an attacker to change the prototype of base object class `Object` by tricking an application to parse the following URL: `https://aurelia.io/blog/?__proto__[asdf]=asdf`. The problem is patched in version `1.1.7`.