Paper/Archive/CVE-2026-40472

CVE-2026-40472

redhat-cnalr — Hackage package metadata stored XSS vulnerability

CVSS 9.9 (CNA)9.9 / 10 × 3029.7 Not in CISA KEV+300.0 EPSS percentile 23.1.231 × 204.6 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource

hackage-server0.1–CNA

Scores by source

redhat-cnalr (CNA)9.9CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L

CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

refosv.dev/vulnerability/HSEC-2026-0004