TI-2026-86677 CVE-2026-123535 · GHSA-cfc4-jgx9-vvjh
Cookie attribute injection in Tornado via set_cookie max_age
Priority LOW 11
Tornado before 6.6 does not validate the max_age argument of RequestHandler.set_cookie (also called by set_signed_cookie, set_secure_cookie, and clear_cookie), allowing injection of additional Set-Cookie attributes.