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CVE-2026-93569

8.2 high SSVC exploitation: none Published
NVD · CVE.org

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.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Change history 3

  1. StatusAwaiting Analysis → PublishedNVD modified 2026-10-19 10:37
  2. References+1 references (now 6)NVD modified 2026-10-15 17:17
  3. First seenCVSS 8.2NVD modified 2026-10-10 00:17

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 6