CVE-2026-54280

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, payload resources are not closed correctly when a client disconnects in the middle of a write. If a payload is using an open file or similar limited resource, then an attacker may be able to cause resource starvation temporarily until garbage collection or similar closes the file. 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/a762eda5242f6490d6ba667533193f8b473ad587	Patch
https://github.com/aio-libs/aiohttp/security/advisories/GHSA-9x8q-7h8h-wcw9	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 19:35

NVD link : CVE-2026-54280

Mitre link : CVE-2026-54280

CVE.ORG link : CVE-2026-54280

JSON object : View

Products Affected

aiohttp

aiohttp

CWE

CWE-404

Improper Resource Shutdown or Release

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