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Tornado is a Python web framework and asynchronous networking library. Prior to 6.5.6, SimpleAsyncHTTPClient shallow-copied redirected requests and removed only the Host header, leaving Authorization…

High CVSS 7.7
CVECVE-2026-49853
First seen2026-07-21 17:16 UTC
Disclosed2026-07-14 21:17 UTC
Last updated2026-07-21 17:16 UTC
Channel statusauto

Summary

Tornado is a Python web framework and asynchronous networking library. Prior to 6.5.6, SimpleAsyncHTTPClient shallow-copied redirected requests and removed only the Host header, leaving Authorization, auth_username, auth_password, and auth_mode in place when a redirect changed scheme, host, or port. This issue is fixed in version 6.5.6.

In-depth triage · Auto channel

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Sources

  • NVD DATABASE

Original Links

Timeline

  1. nvd_ingest NVD