Detections
Analytics

Echo: io.netty:netty-transport-native-epoll: security update to 4.2.13.Final

high Tenable Self-Hosted Container Security Plugin ID 473833

Description

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

 - Netty is an asynchronous, event-driven network application framework. From 4.2.0.Final to 4.2.13.Final ,
 Netty's epoll transport fails to detect and close TCP connections that receive a RST after being half-
 closed, leading to stale channels that are never cleaned up and, in some code paths, a 100% CPU busy-loop
 in the event loop thread. This vulnerability is fixed in 4.2.13.Final. (CVE-2026-42577)

Solution

Update the io.netty:netty-transport-native-epoll library and its related packages to version 4.2.13.Final or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-42577

Plugin Details

Severity: High

ID: 473833

Version: Revision 1.1

Type: Local

Published: 10/8/2026

Updated: 10/8/2026

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 94.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-42577

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 10/8/2026

Vulnerability Publication Date: 5/6/2026

Reference Information

CVE: CVE-2026-42577