PyPI/tornado CVE-2025-67726: high 7.5, EPSS 0.53%
Tornado is a Python web framework and asynchronous networking library. Versions 6.5.2 and below use an inefficient algorithm when parsing parameters for HTTP header values, potentially causing a DoS.
Action: Upgrade tornado to 6.5.3 or later.
pip install tornado==6.5.3Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 6.5.3 | - |
Fixed versions
| 6.5.3 |
Sources
- osv: PYSEC-2025-267
- https://github.com/tornadoweb/tornado/releases/tag/v6.5.3
- https://github.com/tornadoweb/tornado/security/advisories/GHSA-jhmp-mqwm-3gq8
- https://github.com/tornadoweb/tornado/commit/771472cfdaeebc0d89a9cc46e249f8891a6b29cd
CVE-2025-67726 · published · modified · JSON