Echo: gunicorn: security update to 22.0.0

high Tenable Cloud Security Plugin ID 455502

Description

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

- Gunicorn version 21.2.0 does not properly validate the value of the 'Transfer-Encoding' header as
specified in the RFC standards, which leads to the default fallback method of 'Content-Length,' making it
vulnerable to TE.CL request smuggling. This vulnerability can lead to cache poisoning, data exposure,
session manipulation, SSRF, XSS, DoS, data integrity compromise, security bypass, information leakage, and
business logic abuse. (CVE-2024-6827)

Solution

Update the gunicorn library and its related packages to version 22.0.0 or later.

See Also

https://advisory.echohq.com/cve/CVE-2024-6827

Plugin Details

Severity: High

ID: 455502

Version: Revision 1.1

Type: Local

Published: 10/1/2026

Updated: 10/1/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.92

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2024-6827

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:H/I:N/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: 8/19/2026

Vulnerability Publication Date: 3/20/2025

Reference Information

CVE: CVE-2024-6827