CVE-2026-93565 Affecting netty-codec-http package, versions *


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.77% (55th percentile)

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  • Snyk IDSNYK-RHEL9-NETTYCODECHTTP-20044936
  • published22 Sept 2026
  • disclosed10 Sept 2026

Introduced: 10 Sep 2026

CVE-2026-93565  (opens in a new tab)
CWE-1035  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:9 netty-codec-http.

NVD Description

Note: Versions mentioned in the description apply only to the upstream netty-codec-http package and not the netty-codec-http package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

A flaw was found in Netty RtspDecoder. The RtspMethods.valueOf() function incorrectly strips trailing control bytes from method tokens in Real-Time Streaming Protocol (RTSP) requests. A remote attacker can exploit this by sending a specially crafted RTSP request, leading to method-token smuggling. This vulnerability allows an attacker to bypass method-based access controls and can also be used to launder malicious requests through Netty-based RTSP proxies, making them appear legitimate to backend systems.

CVSS Base Scores

version 3.1