CVE-2025-67724

MediumCVSS 6.1/10Last modified Oct 7, 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.

Metrics

CVSS 3.1 6.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-79 CWE-644

Affected software

No affected versions have been published.

Timeline

Published: Dec 12, 2025
Last modified: Oct 7, 2026
NVD status: Analyzed

Related CVEs from 2025

CVE-2025-677257.5Tornado is a Python web framework and asynchronous networking library. In versions 6.5.2 and below, a single maliciously crafted HTTP reques CVE-2025-677267.5Tornado is a Python web framework and asynchronous networking library. Versions 6.5.2 and below use an inefficient algorithm when parsing pa CVE-2025-677279.8Parse Server is an open source backend that can be deployed to any infrastructure that runs Node.js. In versions prior to 8.6.0-alpha.2, a G CVE-2025-677289.8Fireshare facilitates self-hosted media and link sharing. Versions 1.2.30 and below allow an authenticated user, or unauthenticated user if CVE-2025-677298.8LMDeploy is a toolkit for compressing, deploying, and serving LLMs. Prior to version 0.11.1, an insecure deserialization vulnerability exist CVE-2025-67735.3A vulnerability was found in HKUDS LightRAG up to 1.3.8. It has been declared as critical. Affected by this vulnerability is the function up CVE-2025-677305.4Frappe Learning Management System (LMS) is a learning system that helps users structure their content. Versions prior to 2.42.0 allow authen CVE-2025-677317.5Servify Express is a Node.js package to start an Express server and log the port it's running on. Prior to 1.2, the Express server used expr CVE-2025-677326.5Dify is an open-source LLM app development platform. Prior to version 1.11.0, the API key is exposed in plaintext to the frontend, allowing CVE-2025-677337.1Valkey is a distributed key-value database. Prior to versions 9.0.2, 8.1.6, 8.0.7, and 7.2.12, a malicious user can use scripting commands t CVE-2025-677345.4Frappe Learning Management System (LMS) is a learning system that helps users structure their content. Versions prior to 2.42.0 allowed auth CVE-2025-677356.5Netty is an asynchronous, event-driven network application framework. In versions prior to 4.1.129.Final and 4.2.8.Final, the `io.netty.hand