CVE-2026-54278

HighCVSS 7.5/10Last modified Jun 26, 2026

Description

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, during cleanup it is possible for a compressed request body to be decompressed into memory in one chunk. An attacker may be able to send a compressed payload in specific situations that could be decompressed into memory, potentially leading to DoS (a zip bomb edge case). This vulnerability is fixed in 3.14.1.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-409

Affected software

No affected versions have been published.

Timeline

Published: Jun 22, 2026
Last modified: Jun 26, 2026
NVD status: Analyzed

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