CVE-2026-54273

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, no limit was present on the number of pipelined requests that could be queued. An attacker may be able to use pipelined requests to use excessive amounts of memory, potentially leading to DoS. This vulnerability is fixed in 3.14.1.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/aio-libs/aiohttp/commit/dfdfa9d5aad5d21f91c79fb2ceeba0f8046cb6cf	Patch
https://github.com/aio-libs/aiohttp/security/advisories/GHSA-4fvr-rgm6-gqmc	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:aiohttp:aiohttp:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-06-22 18:16

Updated : 2026-06-26 19:37

NVD link : CVE-2026-54273

Mitre link : CVE-2026-54273

CVE.ORG link : CVE-2026-54273

JSON object : View

Products Affected

aiohttp

aiohttp

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

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