CVE-2026-54278

Updated on 15 Jun 2026

Severity

Awaiting Analysis

Details

Overview

About vulnerability

Summary

During cleanup it is possible for a compressed request body to be decompressed into memory in one chunk.

Impact

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).

Workaround

Disable compression if unable to upgrade.


Patch: https://github.com/aio-libs/aiohttp/commit/4f7480e474cccc6a8cc2c92ad3f17a31dedf8232

Details

Affected packages:
aiohttp @ 3.10.11 (+5 more)

Summary

During cleanup it is possible for a compressed request body to be decompressed into memory in one chunk.

Impact

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).

Workaround

Disable compression if unable to upgrade.


Patch: https://github.com/aio-libs/aiohttp/commit/4f7480e474cccc6a8cc2c92ad3f17a31dedf8232