CVE-2026-93565 Io.netty/netty-codec-http: netty rtspdecoder method-token smuggling via trailing control byte
Remote attackers can bypass method-based access controls and launder malicious requests in Netty-based RTSP proxies by exploiting improper stripping of trailing control bytes in RTSP method tokens.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-93565?
CVE-2026-93565 is a high-severity vulnerability in Red Hat AMQ Broker 7, published on 18 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-1035
Which versions are affected by CVE-2026-93565?
How do I fix CVE-2026-93565?
Upgrade to a fixed version.
Is CVE-2026-93565 being exploited?
There is no known exploitation of CVE-2026-93565 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-93565, GHSA-6f4p-h3xm-c8rc, UBUNTU-CVE-2026-93565.