tornadoweb/tornado · Security

Tornado has cookie attribute injection via .RequestHandler.set_cookie

GHSA ID
GHSA-fqwm-6jpj-5wxc
CVE ID
CVE-2026-35536
Severity
high
Published
Updated
CVSS
7.2 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
CVSS v3
7.2 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Description

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.

CWEs

References