vulnerability
Amazon Linux 2023: CVE-2025-67724: Important priority package update for python-tornado
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:N/AC:M/Au:N/C:P/I:P/A:N) | Dec 12, 2025 | Jan 12, 2026 | Jan 12, 2026 |
Severity
6
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:N)
Published
Dec 12, 2025
Added
Jan 12, 2026
Modified
Jan 12, 2026
Description
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 HTTP headers (where it could be used for header injection) or in HTML in the default error page (where it could be used for XSS) and can be exploited by passing untrusted or malicious data into the reason argument. Used by both RequestHandler.set_status and tornado.web.HTTPError, the argument is designed to allow applications to pass custom "reason" phrases (the "Not Found" in HTTP/1.1 404 Not Found) to the HTTP status line (mainly for non-standard status codes). This issue is fixed in version 6.5.3.
Solutions
amazon-linux-2023-upgrade-python3-tornadoamazon-linux-2023-upgrade-python3-tornado-debuginfoamazon-linux-2023-upgrade-python-tornado-debugsourceamazon-linux-2023-upgrade-python-tornado-doc
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