Quick answers
- Is CVE-2026-93565 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-93565 being exploited in the wild.
- How severe is CVE-2026-93565?
- High severity, with a CVSS score of 7.5, published 18 September 2026.
- Which products and versions are affected?
- Netty <UNKNOWN>.
- Is there a fix for CVE-2026-93565?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-93565 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-93565?
- Check whether you run Netty at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The vulnerability exists in Netty's RtspDecoder component, specifically in the `RtspMethods.valueOf()` function, which incorrectly strips trailing control bytes from RTSP method tokens during request parsing. This allows an attacker to send a specially crafted RTSP request that exploits improper method-token parsing, leading to method-token smuggling. The attack requires network connectivity to an RTSP service using vulnerable Netty versions and no authentication is required. An attacker can bypass method-based access controls and launder malicious requests through Netty-based RTSP proxies so that backend systems interpret them as legitimate traffic. A patch is expected to correct the improper control byte stripping logic.
Affected products
- Netty Netty <UNKNOWN>
Timeline
- 2026-09-18: disclosed