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PyPI/tornado CVE-2026-35536: high 7.2, EPSS 0.25%

Tornado has cookie attribute injection via .RequestHandler.set_cookie

Action: Upgrade tornado to 6.5.5 or later.

pip install tornado==6.5.5

Affected

introducedfixedlast affected
06.5.5-

Fixed versions

6.5.5

Sources

CVE-2026-35536 · published · modified · JSON