Detections
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Echo: io.netty:netty-codec-classes-quic: security update to 4.2.15.Final

medium Tenable Self-Hosted Container Security Plugin ID 458889

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Netty is a network application framework for development of protocol servers and clients. Prior to version
 4.2.15.Final, Netty QUIC exposes the stateless reset token on the network path when using the default
 HMAC-based connection-ID and stateless-reset-token generators. The reset token for the server's current
 source connection ID can be derived from bytes that appear as the connection ID in QUIC headers after a
 source-CID rotation. An on-path attacker observing the headers can use the token to perform a Denial of
 Service by sending a spoofed Stateless Reset packet. Version 4.2.15.Final patches the issue.
 (CVE-2026-50009)

Solution

Update the io.netty:netty-codec-classes-quic library and its related packages to version 4.2.15.Final or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-50009

Plugin Details

Severity: Medium

ID: 458889

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/5/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 2.1

Percentile: 7.75

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

Vector: CVSS2#AV:N/AC:H/Au:N/C:P/I:N/A:P

CVSS Score Source: CVE-2026-50009

CVSS v3

Risk Factor: Medium

Base Score: 4.8

Temporal Score: 4.2

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 9/28/2026

Vulnerability Publication Date: 6/12/2026

Reference Information

CVE: CVE-2026-50009