AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, for some multipart form fields, aiohttp read the entire field into memory before checking client_max_size. This issue has been patched in version 3.13.4.
Project Subscriptions
No data.
Advisories
| Source | ID | Title |
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Github GHSA |
GHSA-3wq7-rqq7-wx6j | AIOHTTP has late size enforcement for non-file multipart fields causes memory DoS |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Thu, 02 Apr 2026 00:15:00 +0000
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threat_severity
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cvssV3_1
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Wed, 01 Apr 2026 23:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, for some multipart form fields, aiohttp read the entire field into memory before checking client_max_size. This issue has been patched in version 3.13.4. | |
| Title | AIOHTTP: Late size enforcement for non-file multipart fields causes memory DoS | |
| Weaknesses | CWE-770 | |
| References |
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| Metrics |
cvssV4_0
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Projects
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-04-01T20:14:15.830Z
Reserved: 2026-03-30T16:03:31.047Z
Link: CVE-2026-34517
No data.
Status : Received
Published: 2026-04-01T21:16:59.870
Modified: 2026-04-01T21:16:59.870
Link: CVE-2026-34517
OpenCVE Enrichment
No data.
Weaknesses
Github GHSA