GitHub Advisoryadvisory · npm
GHSA-6ggm-pwr9-r5h2 XSS in @leanprover/unicode-input-component
LOW
Official page ↗
- Aliases
- CVE-2026-32732
- Ecosystem
- npm
- Packages
- @leanprover/unicode-input-component
- Severity
- Low
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N
- Weaknesses
- CWE-80
- Reviewed
- 2026-03-16
Affected packages
• npm @leanprover/unicode-input-component: < 0.2.0 → fixed in 0.2.0
Description
Impact
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.
Patches
The issue has been resolved in 0.2.0.
Workarounds
Replace the unicode input component with a basic HTML text field.
Related
Alias · CVE (1)
- CVE-2026-32732 Lean 4 VS Code Extension is a Visual Studio Code extension for the Lean 4 proof assistant. vulnerability
Weakness · CWE (1)
- CWE-80 Improper Neutralization of Script-Related HTML Tags in a Web Page weakness
References
- https://github.com/leanprover/vscode-lean4/security/advisories/GHSA-6ggm-pwr9-r5h2 web
- https://nvd.nist.gov/vuln/detail/CVE-2026-32732 advisory
- https://github.com/leanprover/vscode-lean4/pull/735 web
- https://github.com/leanprover/vscode-lean4 package
- https://leanprover.zulipchat.com/#narrow/channel/113488-general/topic/weird.20behavior.20in.20loogle.20searchbar/near/578502003 web