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Vulnerability Intelligence
Miggo AI
Miggo AIMiggo AIMiggo AIRoot Cause AnalysisThe vulnerability stems from missing validation in the HTTP method parameter handling. The patch adds a regex check (_CONTAINS_CONTROL_CHAR_RE) in ClientRequest's init method to prevent control characters. The pre-patch version of this function in client_reqrep.py accepted arbitrary method values without validation, making it the entry point for CRLF injection. The PoC demonstrates exploitation through session.request() with a malicious method parameter, which ultimately flows through this constructor.
| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
|---|---|---|---|
| aiohttp | pip | < 3.9.0 | 3.9.0 |
PythonPythonKEV Misses 88% of Exploited CVEs- Get the report