AIOHTTP: Unbounded buffering of data received during an upgrade request
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
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| aio-libs | aiohttp | affected |
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| Aio-libs | Aiohttp |
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No CVSS v3.1
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
No EPSS score available.
Key SSVC decision points have not yet been added.
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Aio-libs
Aio-libs aiohttp |
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| Vendors & Products |
Aio-libs
Aio-libs aiohttp |
| Type | Values Removed | Values Added |
|---|---|---|
| Description | AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, aiohttp buffers all additional connection data received while a request marked for upgrade, such as a WebSocket handshake, is being handled, without a size limit or flow control. A remote attacker can stream data behind an upgrade request to a handler that does not immediately accept or reject the upgrade and cause unbounded memory consumption. This issue is fixed in version 3.14.4. | |
| Title | AIOHTTP: Unbounded buffering of data received during an upgrade request | |
| Weaknesses | CWE-770 | |
| References |
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| Metrics |
cvssV4_0
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