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.
References
| Link | Resource |
|---|---|
| https://github.com/tornadoweb/tornado/commit/9c163aebeaad9e6e7d28bac1f33580eb00b0e421 | Patch |
| https://github.com/tornadoweb/tornado/releases/tag/v6.5.3 | Release Notes |
| https://github.com/tornadoweb/tornado/security/advisories/GHSA-pr2v-jx2c-wg9f | Mitigation Vendor Advisory |
Configurations
History
22 Dec 2025, 18:49
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://github.com/tornadoweb/tornado/commit/9c163aebeaad9e6e7d28bac1f33580eb00b0e421 - Patch | |
| References | () https://github.com/tornadoweb/tornado/releases/tag/v6.5.3 - Release Notes | |
| References | () https://github.com/tornadoweb/tornado/security/advisories/GHSA-pr2v-jx2c-wg9f - Mitigation, Vendor Advisory | |
| First Time |
Tornadoweb
Tornadoweb tornado |
|
| CPE | cpe:2.3:a:tornadoweb:tornado:*:*:*:*:*:*:*:* |
12 Dec 2025, 06:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-12-12 06:15
Updated : 2025-12-22 18:49
NVD link : CVE-2025-67724
Mitre link : CVE-2025-67724
CVE.ORG link : CVE-2025-67724
JSON object : View
Products Affected
tornadoweb
- tornado