CVE-2026-40472

critical · 9.9

In hackage-server, user-controlled metadata from .cabal files are rendered into HTML href attributes without proper sanitization, enabling stored Cross-Site Scripting (XSS) attacks.

9.9

CVSS

0.3%

EPSS (exploit prob.)

23rd

EPSS percentile

2026-04-23

Published

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L

Weaknesses

CWE-79

References

https://osv.dev/vulnerability/HSEC-2026-0004

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-40472