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OpenAdvisories
None · 0.0 CVE-2026-32732 EUVD-2026-12181GHSA-6ggm-pwr9-r5h2

XSS in @leanprover/unicode-input-component

Published Mar 13, 2026 · Updated Mar 16, 2026 · Assigned by GitHub_M

Description

Lean 4 VS Code Extension is a Visual Studio Code extension for the Lean 4 proof assistant. Projects that use @leanprover/unicode-input-component are vulnerable to an XSS exploit in 0.1.9 of the package and lower. The component re-inserted text in the input element back into the input element as unescaped HTML. The issue has been resolved in 0.2.0.

Affected products

VendorProductAffectedFixed
leanprover vscode-lean4 < 0.2.0 —

Affected packages

EcosystemPackageAffectedFixedRecord
npm @leanprover/unicode-input-component < 0.2.0 0.2.0 GHSA-6ggm-pwr9-r5h2

References