Detections
Analytics
SCA: security update for io.netty:netty-codec-http (GHSA-hvcg-qmg6-jm4c)
medium Tenable Self-Hosted Container Security Plugin ID 443219
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
versions 4.1.135.Final and 4.2.15.Final, before reading the first request-line, `HttpObjectDecoder` skips
every byte for which `Character.isISOControl(b)` is `true` (0x00–0x1F and 0x7F) as well as all whitespace.
RFC 9112 §2.2 only asks servers to ignore empty CRLF lines preceding the request-line — a carefully scoped
robustness allowance intended to handle HTTP/1.0 POST workarounds. Silently absorbing NUL bytes, SOH, STX,
and other non-CRLF control characters goes significantly beyond this, and can be exploited for request-
boundary confusion in pipelined or multiplexed transports where a front-end component treats those bytes
differently. Versions 4.1.135.Final and 4.2.15.Final patch the issue. (CVE-2026-50020)
Solution
Update the io.netty:netty-codec-http library and its related packages to version 4.1.135.Final or later.See Also
Plugin Details
Severity: Medium
ID: 443219
Version: Revision 1.2
Type: Local
Family: SCA Checks
Published: 6/16/2026
Updated: 6/30/2026
Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security
Risk Information
VPR
Risk Factor: Low
Score: 1.2
Percentile: 0.01
Vendor
Vendor Severity: Medium
CVSS v2
Risk Factor: Medium
Base Score: 5
Temporal Score: 3.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N
CVSS Score Source: CVE-2026-50020
CVSS v3
Risk Factor: Medium
Base Score: 5.3
Temporal Score: 4.6
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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: 6/15/2026
Vulnerability Publication Date: 6/12/2026
Reference Information
CVE: CVE-2026-50020
cwe: CWE-444