Detections
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Echo: aiohttp, python-aiohttp: security update to 3.14.0

high Tenable Self-Hosted Container Security Plugin ID 459602

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 3.14.0,
 cookies set with the `cookies` parameter on requests are sent after following a cross-origin redirect. If
 a developer uses the `cookies` parameter on a per-request basis then sensitive data might be leaked to an
 attacker if they manage to control a redirect. Version 3.14.0 patches the issue. If unable to upgrade,
 using a `Cookie` header in the `headers` parameter is not vulnerable. (CVE-2026-47265)

Solution

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

See Also

https://advisory.echohq.com/cve/CVE-2026-47265

Plugin Details

Severity: High

ID: 459602

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: 3

Percentile: 23.77

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-47265

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 6/3/2026

Vulnerability Publication Date: 6/2/2026

Reference Information

CVE: CVE-2026-47265

IAVB: 2026-B-0148-S