CVE-2026-40299

描述

### Impact Applications using the `next-intl` middleware with `localePrefix: 'as-needed'` could construct URLs where path handling and the WHATWG URL parser resolved a relative redirect target to another host (e.g. scheme-relative `//` or control characters stripped by the URL parser), so the middleware could redirect the browser off-site while the user still started from a trusted app URL. ### Patches The problem has been patched, please update to [`[email protected]`](https://github.com/amannn/next-intl/releases/tag/v4.9.1). ### Credits Many thanks to [Joni Liljeblad](https://github.com/joniumGit) from [Oura](https://ouraring.com) for responsibly disclosing the vulnerability and for suggesting the fix.

如何修補 CVE-2026-40299

要修補 CVE-2026-40299,請將受影響套件升級到下列已修補版本。

• —升級至 4.9.1 或更新版本

CVE-2026-40299 正在被利用嗎?

低 — EPSS 為 0.1%,目前沒有觀察到大規模利用活動。

受影響套件(1)

• from 0, < 4.9.1

CVSS 分數

參考連結(6)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2026-40299
• PATCHgithub.com/amannn/next-intl
• WEBgithub.com/amannn/next-intl/commit/1c80b668aa6d853f470319eec10a3f61e78a70e6
• WEBgithub.com/amannn/next-intl/pull/2304
• WEB