CVE-2026-40472

CRITICAL CVSS 9.9 View on NVD ↗

Description

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.

CVSS Vector

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

References

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

Published: Apr 23, 2026 16:16 UTC Modified: Apr 23, 2026 16:16 UTC