CVE-2026-93569Io.netty/netty-codec-http2: http/1 absolute-form host mismatch is translated to http/2 :authority, overriding the request-target authority
Açıklama
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.
Veri: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Bilgiler kaynaktaki haliyle, İngilizce yayımlanır.
Etkilenen ürünler ve sürümler
Kaynaklar ve yamalar
- RHSA-2026:69440 vendor-advisory
- RHSA-2026:69470 vendor-advisory
- RHSA-2026:70257 vendor-advisory
- RHSA-2026:83612 vendor-advisory
- RHSA-2026:95221 vendor-advisory
- RHSA-2026:95759 vendor-advisory
- RHSA-2026:95760 vendor-advisory
- RHSA-2026:95761 vendor-advisory
- RHSA-2026:95762 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-93569 vdb-entry
- RHBZ#2536962 issue-tracking