CVE-2026-6322
Publiée le 2026-05-05 · Dernière modification le 2026-09-10
Les applications utilisant la bibliothèque `fast-uri` (version 3.1.1 et versions antérieures) pour valider ou acheminer des URL sont sensibles à une erreur d'analyse (parsing) d'URI. Un attaquant distant non authentifié peut contourner les listes d'autorisation de domaines en utilisant des caractères encodés spécifiquement pour tromper le système et acheminer les requêtes vers un serveur malveillant plutôt que vers celui prévu. Cette faille est facile à exploiter car elle ne nécessite aucune interaction de l'utilisateur ni de privilèges particuliers, au-delà d'un simple accès réseau.
DÉTAIL DU VECTEUR CVSS
RÉFÉRENCES
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- ce714d77-add3-4f53-aff5-83d477b104bb
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- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Description officielle du NVD (en anglais)
fast-uri normalize() decoded percent-encoded authority delimiters inside the host component and then re-emitted them as raw delimiters during serialization. A host that combined an allowed domain, an encoded at-sign, and a different domain was re-emitted with the at-sign as a raw userinfo separator, changing the URI's authority to the second domain. Applications that normalize untrusted URLs before host allowlist checks, redirect validation, or outbound request routing can be steered to a different authority than the input appeared to specify. Versions <= 3.1.1 are affected. Update to 3.1.2 or later.