CVE-2026-54278
AIOHTTP: Unread Compressed Request Bodies Bypass client_max_size During Cleanup
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.
INFO
Published Date :
June 22, 2026, 4:38 p.m.
Last Modified :
June 22, 2026, 4:38 p.m.
Remotely Exploit :
No
Source :
GitHub_M
Affected Products
The following products are affected by CVE-2026-54278
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update aiohttp to version 3.14.1 or later.
- Apply vendor-provided patches if available.
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The following list is the news that have been mention
CVE-2026-54278 vulnerability anywhere in the article.