Analysis
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Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| aio-libs | aiohttp | affected |
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Fri, 13 Nov 2026 20:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, BodyPartReader.read_chunk() processing a multipart part with Content-Transfer-Encoding set to base64 keeps reading until the chunk length is a multiple of four without enforcing a byte limit. A short Content-Length or a long run of whitespace can cause one call to read the remaining body into memory before the size check or spin on the event loop. A remote attacker can send such a multipart request to a handler that reads multipart data and bypass client_max_size. This issue is fixed in version 3.14.4. | |
| Title | AIOHTTP: Base64 multipart parts bypass client_max_size | |
| Weaknesses | CWE-400 | |
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cvssV4_0
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Subscriptions
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MITRE
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-11-13T20:30:19.198Z
Reserved: 2026-11-12T22:42:47.032Z
Link: CVE-2026-128127
Vulnrichment
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NVD
Status : Received
Published: 2026-11-13T21:17:44.460
Modified: 2026-11-13T21:17:44.460
Link: CVE-2026-128127
Redhat
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OpenCVE Enrichment
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CWE-400
Uncontrolled Resource Consumption