CVE-2026-32732

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.

Score

CVSS 4.0 0.0 None

Status

Deferred - security-advisories@github.com

Published

2026-03-16

Last modified

2026-03-16

Weaknesses

CWE-80

Affected products

• Vscode-lean4 (Leanprover)

References

• https://github.com/leanprover/vscode-lean4/pull/735
• https://github.com/leanprover/vscode-lean4/security/advisories/GHSA-6ggm-pwr9-r5h2
• https://leanprover.zulipchat.com/#narrow/channel/113488-general/topic/weird.20behavior.20in.20loogle.20searchbar/near/5…