Tornado Web Server Tornado any version

Tornado has a DoS due to too many multipart parts

Tornado has HTTP cookie parsing DoS vulnerability

Tornado vulnerable to excessive logging caused by malformed multipart form data

Tornado is Vulnerable to Quadratic DoS via Repeated Header Coalescing

Tornado is Vulnerable to Quadratic DoS via Crafted Multipart Parameters

In Tornado before 6.5.5, cookie attribute injection could occur because the domain, path, and samesite arguments to .RequestHandler.set_cookie were not checked for crafted characters.

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.

Open redirect vulnerability in Tornado versions 6.3.1 and earlier allows a remote unauthenticated attacker to redirect a user to an arbitrary web site and conduct a phishing attack by having user access a specially crafted URL.

Tornado vulnerable to Header Injection and XSS via reason argument

CRLF injection vulnerability in the tornado.web.RequestHandler.set_header function in Tornado before 2.2.1 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via crafted input.