---
id: CVE-2026-93565
title: A flaw was found in Netty RtspDecoder
summary: >-
  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 spe…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'
cwe:
  - CWE-1035
vendor: Red Hat
product: netty-codec-http
affected:
  - netty-codec-http (all versions)
  - netty-codec-http (all versions)
  - netty-codec-http (all versions)
  - netty-codec-http (all versions)
  - netty-codec-http (all versions)
  - netty-codec-http (all versions)
  - netty-codec-http (all versions)
  - netty-codec-http (all versions)
  - netty-codec-http
  - netty-codec-http
  - netty-codec-http (all versions)
  - netty-codec-http (all versions)
published: '2026-09-18'
updated: '2026-09-21'
sourceUpdated: '2026-09-21T21:17:18.260'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93565'
references:
  - url: 'https://access.redhat.com/errata/RHSA-2026:69470'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/security/cve/CVE-2026-93565'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2536952'
    label: secalert@redhat.com
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93565.json
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-93565'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93565'
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-21T19:48:34.585168Z'
epss: 0.00367
epssPercentile: 0.30388
ingestedAt: '2026-09-18T14:43:13.071Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Vendor advisories

- **Red Hat VEX** · Important · affected: Red Hat AMQ Broker 7, Red Hat AMQ Clients, Red Hat build of Apache Camel 4 for Quarkus 3, Red Hat build of Apache Camel for Spring Boot 4, Red Hat build of Apicurio Registry 3, Red Hat build of Debezium 3, … · no fix planned: Red Hat Fuse 7, Red Hat JBoss Enterprise Application Platform 7, Red Hat Single Sign-On 7, Red Hat AMQ Broker 7, … · updated 2026-09-21 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93565.json)