https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-08T15:50:46.455753+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/euvd-2026-292073 EUVD-2026-292073 2026-10-08T15:50:46.457877+00:00 EUVD-2026-292073 https://cve.radiocsirt.org/vuln/fkie_cve-2026-40299 fkie_cve-2026-40299 2026-10-08T15:50:46.457907+00:00

next-intl provides internationalization for Next.js. Applications using the `next-intl` middleware prior to version 4.9.1with `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. The problem has been patchedin `next-intl@4.9.1`.

 https://cve.radiocsirt.org/vuln/ghsa-8f24-v5vv-gm5j GHSA-8f24-v5vv-gm5j — next-intl has an open redirect vulnerability 2026-10-08T15:50:46.457940+00:00

Affected: npm: next-intl

### 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 [`next-intl@4.9.1`](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.