Echo: aiohttp: security update to 3.13.3+echo.4python-aiohttp: security update to 3.14.3-1

high Tenable Self-Hosted Container Security Plugin ID 460775

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 3.14.3, an out-
of-bounds heap read could occur in the C response parser while building an error message for a malformed
response. An attacker controlled server, or possibly an accidental response, could trigger a DoS in the
client. The vulnerable path was error message construction in aiohttp/_http_parser.pyx, where an llhttp
error-position pointer was used to build a snippet for malformed chunked responses and malformed request
or response bytes at the buffer end. This issue is fixed in version 3.14.3. (CVE-2026-69244)

Solution

Update the aiohttp library and its related packages to version 3.13.3+echo.4 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-69244

Plugin Details

Severity: High

ID: 460775

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/3/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.62

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-2026-69244

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: 7.1

Threat Score: 4.9

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 8/4/2026

Vulnerability Publication Date: 8/3/2026

Reference Information

CVE: CVE-2026-69244

IAVA: 2026-A-0818