CVE-2026-40471
CRITICAL
NVD
CVSS Score
9.6
Severity
CRITICAL
Published
Apr 23, 2026
Vendor
unknown
Description
hackage-server lacked Cross-Site Request Forgery (CSRF) protection across its endpoints. Scripts on foreign sites could trigger requests to hackage server, possibly abusing latent credentials to upload packages or perform other administrative actions. Some unauthenticated actions could also be abused (e.g. creating new user accounts).