Echo: aiohttp: security update to 3.9.0

medium Tenable Cloud Security Plugin ID 459850

Description

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

- aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. Improper validation makes
it possible for an attacker to modify the HTTP request (e.g. insert a new header) or even create a new
HTTP request if the attacker controls the HTTP method. The vulnerability occurs only if the attacker can
control the HTTP method (GET, POST etc.) of the request. If the attacker can control the HTTP version of
the request it will be able to modify the request (request smuggling). This issue has been patched in
version 3.9.0. (CVE-2023-49082)

Solution

Update the aiohttp library and its related packages to version 3.9.0 or later.

See Also

https://advisory.echohq.com/cve/CVE-2023-49082

Plugin Details

Severity: Medium

ID: 459850

Version: Revision 1.2

Type: Local

Published: 10/2/2026

Updated: 10/5/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2023-49082

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.8

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:P/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 6.9

Threat Score: 5.5

Threat Vector: CVSS:4.0/E:P

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/12/2026

Vulnerability Publication Date: 11/27/2023

Reference Information

CVE: CVE-2023-49082