---
title: "CVE-2026-93565: Netty RtspMethods - Authentication Bypass"
description: "Netty RtspMethods contains a broken authentication caused by RtspMethods.valueOf() silently stripping trailing control bytes before cache lookup, letting remote attackers send malformed RTSP methods that are accepted as valid, exploit requires sending RTSP requests with trailing control bytes."
url: https://panop.io/threat-heartbeat/CVE-2026-93565/
---

# CVE-2026-93565 Netty RtspMethods - Authentication Bypass

Netty RtspMethods contains a broken authentication caused by RtspMethods.valueOf() silently stripping trailing control bytes before cache lookup, letting remote attackers send malformed RTSP methods that are accepted as valid, exploit requires sending RTSP requests with trailing control bytes.

CVSS base score 7.5 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.70% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-93565)

## Details

Type

Authentication Bypass

Impact

Broken Authentication

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Published

18 September 2026

Updated

15 October 2026

Weakness

[CWE-1035](https://cwe.mitre.org/data/definitions/1035.html)

## Vendor fix

Update to the latest Netty version containing the fix for RtspMethods.valueOf()

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-93565](https://nvd.nist.gov/vuln/detail/CVE-2026-93565)
- [https://access.redhat.com/security/cve/CVE-2026-93565](https://access.redhat.com/security/cve/CVE-2026-93565)
- [https://bugzilla.redhat.com/show\_bug.cgi?id=2536952](https://bugzilla.redhat.com/show_bug.cgi?id=2536952)
- [https://access.redhat.com/errata/RHSA-2026:69470](https://access.redhat.com/errata/RHSA-2026:69470)
- [https://access.redhat.com/errata/RHSA-2026:69440](https://access.redhat.com/errata/RHSA-2026:69440)
- [https://access.redhat.com/errata/RHSA-2026:70257](https://access.redhat.com/errata/RHSA-2026:70257)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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