CVE-2026-54278
6.6
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| aio-libs | aiohttp | < 3.14.1 | affected |
Weaknesses
- CWE-409: CWE-409: Improper Handling of Highly Compressed Data (Data Amplification)
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: yes
- Technical Impact: partial
References
- https://github.com/aio-libs/aiohttp/security/advisories/GHSA-g3cq-j2xw-wf74
- https://github.com/aio-libs/aiohttp/commit/4f7480e474cccc6a8cc2c92ad3f17a31dedf8232
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