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vulnerabilityCVE-2025-67724
Name
CVE-2025-67724
Source
NVD ( link)Debian ( link)
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.
Published Date
Updated Date
Workaround
-

Analysis#


Affected Component
Analysis
python-tornado
Patched

Vulnerability Ratings#


5.4
CVSSv31
6.1
CVSSv31
NaN
other

Others affected components#


Name
Project
Project Version
Version
Status
buildroot
master
6.5.5
Not Affected
openwrt
master
6.5.5-r1
Not Affected
openwrt
openwrt-25.12
6.3.3-r1
Exploitable
yocto
master
6.5.7
Not Affected
yocto
scarthgap
6.4.2
Patched

Resolved with patches#


python-tornado (buildroot:2025.02.x)

#
Title
Author
Resolve
1
web: Harden against invalid HTTP reason phrases
Ben Darnell <ben@bendarnell.com>
CVE-2025-67724

python3-tornado (yocto:scarthgap)

#
Title
Author
Resolve
1
web: Harden against invalid HTTP reason phrases
Ben Darnell <ben@bendarnell.com>
CVE-2025-67724