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CVE-2026-93569

8.2 Élevée

Publiée le 18/09/2026 à 17:17 · Modifiée le 19/10/2026 à 13:17 · En attente d'analyse NVD · Source : secalert@redhat.com

Description

A flaw was found in Netty. A remote unauthenticated attacker can exploit a vulnerability in Netty's HTTP/1 to HTTP/2 conversion process. When an HTTP/1 request includes both an absolute-form request-target and a conflicting Host header, Netty incorrectly prioritizes the Host header for the HTTP/2 :authority field, discarding the original request-target authority. This inconsistency can allow an attacker to bypass security controls in Netty-based proxies or gateways, potentially leading to unauthorized access, cache poisoning, or misrouting of requests.

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Produits concernés

Scores CVSS

VersionScoreSourceVecteur
3.1 8.2 Élevée secalert@redhat.com CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N

Faiblesses (CWE)

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