Vulnerability DatabaseCVE-2026-32732
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CVE-2026-32732
March 13, 2026
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 Packages
@leanprover/unicode-input-component (NPM):
Affected version(s) >=0.1.0 <0.2.0
Fix Suggestion:
Update to version 0.2.0
@leanprover/unicode-input-component (NPM):
Affected version(s) >=0.1.0 <0.2.0
Fix Suggestion:
Update to version 0.2.0
Related Resources (5)
https://leanprover.zulipchat.com/#narrow/channel/113488-general/topic/weird.20behavior.20in.20loogle.20searchbar/near/578502003
https://nvd.nist.gov/vuln/detail/CVE-2026-32732
https://github.com/leanprover/vscode-lean4/pull/735
https://github.com/leanprover/vscode-lean4/security/advisories/GHSA-6ggm-pwr9-r5h2
https://github.com/leanprover/vscode-lean4
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Weakness Type (CWE)
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
CWE-80
EPSS
Base Score:
0.06