aio-libs aiohttp up to 3.13.2 data amplification

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in aio-libs aiohttp up to 3.13.2. The impacted element is an unknown function. The manipulation leads to data amplification. This vulnerability is traded as CVE-2025-69223. It is possible to initiate the attack remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in aio-libs aiohttp up to 3.13.2. This issue affects an unknown functionality. The manipulation with an unknown input leads to a data amplification vulnerability. Using CWE to declare the problem leads to CWE-409. The product does not handle or incorrectly handles a compressed input with a very high compression ratio that produces a large output. Impacted is availability. The summary by CVE is:

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below allow a zip bomb to be used to execute a DoS against the AIOHTTP server. An attacker may be able to send a compressed request that when decompressed by AIOHTTP could exhaust the host's memory. This issue is fixed in version 3.13.3.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2025-69223 since 12/29/2025. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 281873 (Linux Distros Unpatched Vulnerability : CVE-2025-69223), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 3.13.3 eliminates this vulnerability. Applying the patch 2b920c39002cee0ec5b402581779bbaaf7c9138a is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (281873), EUVD (EUVD-2025-206229) and CERT Bund (WID-SEC-2026-0935). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • SUSE Linux
  • IBM App Connect Enterprise
  • Red Hat Ansible Automation Platform

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (GitHub_M): 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Data amplification
CWE: CWE-409 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 281873
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-69223

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: aiohttp 3.13.3
Patch: 2b920c39002cee0ec5b402581779bbaaf7c9138a

Timelineinfo

12/29/2025 CVE reserved
01/06/2026 +8 days Advisory disclosed
01/06/2026 +0 days VulDB entry created
04/15/2026 +99 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-6mq8-rvhq-8wgg
Status: Confirmed

CVE: CVE-2025-69223 (🔒)
GCVE (CVE): GCVE-0-2025-69223
GCVE (VulDB): GCVE-100-339599
EUVD: 🔒
CERT Bund: WID-SEC-2026-0935 - Red Hat Ansible Automation Platform: Mehrere Schwachstellen

Entryinfo

Created: 01/06/2026 02:56
Updated: 04/15/2026 23:00
Changes: 01/06/2026 02:56 (65), 01/06/2026 03:47 (1), 01/07/2026 06:20 (2), 04/02/2026 20:47 (7), 04/15/2026 23:00 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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