Detections
Analytics

SCA: security update for aiohttp (GHSA-m5qp-6w8w-w647)

high Tenable Self-Hosted Container Security Plugin ID 439637

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 version 3.13.4, a
 response with an excessive number of multipart headers may be allowed to use more memory than intended,
 potentially allowing a DoS vulnerability. This issue has been patched in version 3.13.4. (CVE-2026-34516)

Solution

Update the aiohttp library and its related packages to version 3.13.4 or later.

See Also

https://github.com/advisories/GHSA-m5qp-6w8w-w647

Plugin Details

Severity: High

ID: 439637

Version: Revision 1.9

Type: Local

Family: SCA Checks

Published: 4/2/2026

Updated: 7/6/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 94.15

Vendor

Vendor Severity: Medium

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-2026-34516

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: 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:N/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 4/1/2026

Vulnerability Publication Date: 4/1/2026

Reference Information

CVE: CVE-2026-34516

cwe: CWE-770