CVE-2026-27804

描述

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.3 and 9.3.1, an unauthenticated attacker can forge a Google authentication token with `alg: "none"` to log in as any user linked to a Google account, without knowing their credentials. All deployments with Google authentication enabled are affected. The fix in versions 8.6.3 and 9.3.1 hardcodes the expected `RS256` algorithm instead of trusting the JWT header, and replaces the Google adapter's custom key fetcher with `jwks-rsa` which rejects unknown key IDs. As a workaround, dsable Google authentication until upgrading is possible.

如何修補 CVE-2026-27804

要修補 CVE-2026-27804,請將受影響套件升級到下列已修補版本。

• —升級至 8.6.3 或更新版本
• —升級至 9.3.1-alpha.4 或更新版本

CVE-2026-27804 正在被利用嗎?

低 — EPSS 為 0.2%,目前沒有觀察到大規模利用活動。

受影響套件(2)

• from 0, < 8.6.3, >= 9.0.0, < 9.3.1
• >= 9.0.0, < 9.3.1-alpha.4

CVSS 分數

參考連結(7)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2026-27804
• PATCHgithub.com/parse-community/parse-server
• WEBgithub.com/parse-community/parse-server/commit/9b94083accb7f3e72c6b8126c195c7a03dd2dfd7
• WEBgithub.com/parse-community/parse-server/commit/9d5942d50e55c822924c27b05aa98f1393e7a330