leanprover/vscode-lean4 · Security
XSS in @leanprover/unicode-input-component
- GHSA ID
- GHSA-6ggm-pwr9-r5h2
- CVE ID
- CVE-2026-32732
- Severity
- low
- Published
- Updated
- CVSS v4
- 0 · 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
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.
CWEs
- CWE-80 · Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
References
- https://github.com/leanprover/vscode-lean4/security/advisories/GHSA-6ggm-pwr9-r5h2 ↗
- https://nvd.nist.gov/vuln/detail/CVE-2026-32732 ↗
- https://github.com/leanprover/vscode-lean4/pull/735 ↗
- https://leanprover.zulipchat.com/#narrow/channel/113488-general/topic/weird.20behavior.20in.20loogle.20searchbar/near/578502003 ↗
- https://github.com/advisories/GHSA-6ggm-pwr9-r5h2 ↗