TI-2025-42678 Aliases CVE-2025-69224 GHSA-69f9-5gxw-wvc2

AIOHTTP's Unicode processing of header values could cause parsing discrepancies

LOW 28CWE-444Published 2026-01-05 · Updated 2026-01-06

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: Present
Impact type: —
Confidentiality · integrity · availability: Low · Low · None
Fix status: Partial Red Hat: 9 without a fix

Attack profile from CVSS 4.0 · CNA. Fix status from CNA, GitHub and Red Hat.

Summary

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below of the Python HTTP parser may allow a request smuggling attack with the presence of non-ASCII characters. If a pure Python version of AIOHTTP is installed (i.e. without the usual C extensions) or AIOHTTP_NO_EXTENSIONS is enabled, then an attacker may be able to execute a request smuggling attack to bypass certain firewalls or proxy protections. This issue is fixed in version 3.13.3.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.0025 16th percentileScored 2026-11-07

Fix Partial aiohttp (aio-libs): 3.13.3aiohttp (PyPI): 3.13.3Red Hat: 9 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
aio-libs	aiohttp	before 3.13.3	3.13.3	Patch available	CNA
—	aiohttp (PyPI)	before 3.13.3	3.13.3	Patch available	GHSA-69f9-5gxw-wvc2

aiohttp Vendoraio-libs Affected before 3.13.3 Fixed in 3.13.3 Patch available CNA
aiohttp (PyPI) Vendor— Affected before 3.13.3 Fixed in 3.13.3 Patch available GHSA-69f9-5gxw-wvc2

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:aiohttp:aiohttp::::::::	before 3.13.3	Vulnerable	Aiohttp

cpe:2.3:a:aiohttp:aiohttp:*:*:*:*:*:*:*:* Versions before 3.13.3 Vulnerable ·Aiohttp

Remediation

Fix · CNA aiohttp (aio-libs) Fixed in 3.13.3
Fix · GHSA-69f9-5gxw-wvc2 aiohttp (PyPI) Fixed in 3.13.3 Advisory →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Product	Status	Plan or fix
Migration Toolkit for Containers	Affected	No fix yet: Fix deferred
OpenShift Lightspeed	Affected	No fix yet: Fix deferred
OpenShift Service Mesh 2	Affected	No fix yet: Fix deferred
Red Hat AI Inference Server	Affected	No fix yet: Fix deferred
Red Hat Ansible Automation Platform 2	Affected	No fix yet: Fix deferred
Red Hat Ansible Automation Platform Ansible Core 2	Affected	No fix yet: Fix deferred
Red Hat Enterprise Linux AI (RHEL AI) 3	Affected	No fix yet: Fix deferred
Red Hat OpenShift AI (RHOAI)	Affected	No fix yet: Fix deferred
Red Hat Satellite 6	Affected	No fix yet: Fix deferred

Timeline

2026-10-02 Threatist record created from CVE-2025-69224
2026-10-03 Alias added: GHSA-69f9-5gxw-wvc2

References

Patch 2

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2025-69224

Other 1

https://github.com/aio-libs/aiohttp

TI-2025-38826 aiomysql allows arbitrary access to client files through vulnerability of a malicious MySQL server CVSS 4.0HIGH 8.2
TI-2024-15436 aiohttp.web.static(follow_symlinks=True) is vulnerable to directory traversal CVSS 3.1HIGH 7.5
TI-2023-25769 Request smuggling in aiohttp CVSS 3.1HIGH 7.5
TI-2023-18906 aiohttp vulnerable to HTTP request smuggling CVSS 3.1HIGH 7.5
TI-2023-26746 aiohttp's ClientSession is vulnerable to CRLF injection via version CVSS 3.1HIGH 7.2
TI-2026-66145 Multidict: Reference leak in CIMultiDict/MultiDict items-view union and subtraction CVSS 3.1MEDIUM 5.3

See all 59 →

Sources

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