SCA: security update for aiohttp (GHSA-m6qw-4cw2-hm4m)

medium Tenable Self-Hosted Container Security Plugin ID 443263

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. Prior to 3.14.0, attacker-
controlled input included into multipart/payload headers can be used to modify a request to inject
additional headers or similar. In the unlikely situation that an application is passing user-controlled
strings into MultipartWriter.append(headers=...) or Payload.headers, then an attacker may be able to
modify the request to inject headers or change the contents of the request. This vulnerability is fixed in
3.14.0. (CVE-2026-50269)

Solution

Update the aiohttp library and its related packages to version 3.14.0 or later.

See Also

https://github.com/advisories/GHSA-m6qw-4cw2-hm4m

Plugin Details

Severity: Medium

ID: 443263

Version: Revision 1.7

Type: Local

Family: SCA Checks

Published: 6/16/2026

Updated: 7/6/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.71

Vendor

Vendor Severity: Low

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-50269

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:N/A:H

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

CVSS v4

Risk Factor: Medium

Base Score: 6.9

Threat Score: 2.7

Threat Vector: CVSS:4.0/E:U

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 Ease: No known exploits are available

Patch Publication Date: 6/15/2026

Vulnerability Publication Date: 6/15/2026

Reference Information

CVE: CVE-2026-50269