Tornado before 3.2.2 sends arbitrary responses that contain a fixed CSRF token and may be sent with HTTP compression, which makes it easier for remote attackers to conduct a BREACH attack and determine this token via a series of crafted requests.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| tornado(PyPI) | 0 | 3.2.2 | N/A |
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