Detections
Analytics

SCA: security update for io.netty:netty-codec-stomp (GHSA-3g8r-4pfx-jmfh)

medium Tenable Cloud Security Plugin ID 445157

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. In versions prior to 4.1.136.Final
 and 4.2.16.Final, Netty's STOMP encoder ( StompSubframeEncoder ) does not escape or validate header values
 in CONNECT and CONNECTED frames, so raw newline ( \n ) characters in a header value are written directly
 to the wire, allowing an attacker who controls a header value to inject additional STOMP headers. This
 happens because the encoder intentionally skips escaping for CONNECT/CONNECTED frames per the STOMP 1.2
 specification but never rejects the raw newlines, and since a broker parses each line as a separate
 header, an attacker controlling a value such as a user-supplied login or passcode can overwrite connection
 parameters or add authentication/role headers to bypass authentication or escalate privileges (the actual
 impact is broker-dependent). The issue is fixed in versions 4.1.136.Final and 4.2.16.Final.
 (CVE-2026-59920)

Solution

Update the io.netty:netty-codec-stomp library and its related packages to version 4.1.136.Final or later.

See Also

https://github.com/advisories/GHSA-3g8r-4pfx-jmfh

Plugin Details

Severity: Medium

ID: 445157

Version: Revision 1.3

Type: Local

Family: SCA Checks

Published: 7/23/2026

Updated: 7/30/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.74

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2026-59920

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 7/22/2026

Vulnerability Publication Date: 7/22/2026

Reference Information

CVE: CVE-2026-59920

cwe: CWE-93