Detections
Analytics

Echo: gunicorn: security update to 22.0.0

high Tenable Cloud Security Plugin ID 457019

Description

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

 - Gunicorn fails to properly validate Transfer-Encoding headers, leading to HTTP Request Smuggling (HRS)
 vulnerabilities. By crafting requests with conflicting Transfer-Encoding headers, attackers can bypass
 security restrictions and access restricted endpoints. This issue is due to Gunicorn's handling of
 Transfer-Encoding headers, where it incorrectly processes requests with multiple, conflicting Transfer-
 Encoding headers, treating them as chunked regardless of the final encoding specified. This vulnerability
 allows for a range of attacks including cache poisoning, session manipulation, and data exposure.
 (CVE-2024-1135)

Solution

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

See Also

https://advisory.echohq.com/cve/CVE-2024-1135

Plugin Details

Severity: High

ID: 457019

Version: Revision 1.2

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.93

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2024-1135

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:H/A:N

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

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 6.6

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 8/19/2026

Vulnerability Publication Date: 4/16/2024

Reference Information

CVE: CVE-2024-1135