CVE-2026-40299

N/A

Description

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`.

Details CVE

Score CVSS v3.1N/A

Publie4/17/2026

Derniere modification4/20/2026

Sourcenvd

Observations honeypot0

Faiblesses (CWE)

CWE-601

References

https://github.com/amannn/next-intl/commit/1c80b668aa6d853f470319eec10a3f61e78a70e6(security-advisories@github.com)

https://github.com/amannn/next-intl/pull/2304(security-advisories@github.com)

https://github.com/amannn/next-intl/releases/tag/v4.9.1(security-advisories@github.com)

https://github.com/amannn/next-intl/security/advisories/GHSA-8f24-v5vv-gm5j(security-advisories@github.com)

Correlations IOC

Aucune correlation enregistree

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