CKAN CVE-2026-41255
MEDIUM
GHSA-mcvf-jxcw-vj73
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Lifecycle Timeline
4DescriptionNVD
Views can be marked as exempt from CSRF protection
Access to the views via tokens or unauthenticated requests marked the endpoint as not requiring CSRF protection.
The marking was a member variable in flask-wtf.csrf.CSRFProtect(), which was stored as a module level variable in the flask_app middleware. Thsi API was never intended for request level changes, it is primarily a decorator for static configuration.
An unauthenticated request could hit a protected endpoint, exempting it from CSRF protection for the life of the particular server process. (e.g. one worker of uwsgi).
This could be leveraged with XSS to perform actions using other user's credentials.
AnalysisAI
CKAN versions 2.10.0 through 2.10.9 and 2.11.0 through 2.11.4 allow unauthenticated requests to permanently disable CSRF protection on endpoints for the lifetime of the server process by triggering a state mutation in the flask-wtf CSRFProtect middleware. Combined with cross-site scripting, an attacker can exploit this to perform authenticated actions using other users' credentials. …
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External POC / Exploit Code
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