PT-2026-125384

CVE-2026-116578

Published

2026-10-26

Updated

2026-11-05

Description by

CVSS 4.0

2.1

Low

MetricsAV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions Tornado versions prior to 6.6

Description In the tornado.web.RedirectHandler URL templates, regex-capture substitutions can be manipulated via crafted request paths to alter the redirect scheme or network location. This occurs when substitutions are placed at the start of a path, directly after a fixed host, or at the beginning of the template. This includes protocol-relative, absolute, backslash, encoded, host-extension, and user-info variants that browsers interpret as attacker-controlled destinations. This flaw allows for an open redirect on the application domain, which can be used for phishing.

Recommendations Update to version 6.6.

Exploitability

Exploit

Fix

Impacts

Researchers

Gn00295120

Vendors

Affected products

Weakness enumeration

CWE-601: URL Redirection to Untrusted Site (\'Open Redirect\')

Related identifiers