Vulnerability index

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Tornado MEDIUM 5.3
CVE-2026-35536

In Tornado before 6.5.5, cookie attribute injection could occur because the domain, path, and samesite arguments to .RequestHandler.set_cookie were n…

Fix: 6.5.5+
Fix from $1,600 2026-04-03
Tornado HIGH 7.5
CVE-2026-31958

Tornado is a Python web framework and asynchronous networking library. In versions of Tornado prior to 6.5.5, the only limit on the number of parts i…

Fix: 6.5.5+
Fix from $1,950 2026-03-11
Tornado HIGH 7.5
CVE-2025-67726

Tornado is a Python web framework and asynchronous networking library. Versions 6.5.2 and below use an inefficient algorithm when parsing parameters …

Fix: 6.5.3+
Fix from $1,950 2025-12-12
Tornado HIGH 7.5
CVE-2025-67725

Tornado is a Python web framework and asynchronous networking library. In versions 6.5.2 and below, a single maliciously crafted HTTP request can blo…

Fix: 6.5.3+
Fix from $1,950 2025-12-12
Tornado MEDIUM 6.1
CVE-2025-67724

Tornado is a Python web framework and asynchronous networking library. In versions 6.5.2 and below, the supplied reason phrase is used unescaped in H…

Fix: 6.5.3+
Fix from $1,600 2025-12-12
Tornado HIGH 7.5
CVE-2024-52804

Tornado is a Python web framework and asynchronous networking library. The algorithm used for parsing HTTP cookies in Tornado versions prior to 6.4.2…

Fix: 6.4.2+
Fix from $1,950 2024-11-22
Tornado MEDIUM 6.1
CVE-2023-28370

Open redirect vulnerability in Tornado versions 6.3.1 and earlier allows a remote unauthenticated attacker to redirect a user to an arbitrary web sit…

Fix: 6.3.2+
Fix from $1,600 2023-05-25
Tornado MEDIUM 6.5
CVE-2014-9720

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 remot…

Fix: 3.2.2+
Fix from $1,600 2020-01-24
Tornado MEDIUM 5.0
CVE-2012-2374

CRLF injection vulnerability in the tornado.web.RequestHandler.set_header function in Tornado before 2.2.1 allows remote attackers to inject arbitrar…

Fix: after 2.2
Fix from $1,600 2012-05-23