XSS in Leanprover Vscode-lean4
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…
EPSS: 0.001 (20.8th percentile) — read the EPSS interpretation.
Affected products
- Leanprover Vscode-lean4 — versions < 0.2.0
Weakness classification (CWE)
References
- https://github.com/leanprover/vscode-lean4/security/advisories/GHSA-6ggm-pwr9-r5h2 (x_refsource_CONFIRM)
- https://github.com/leanprover/vscode-lean4/pull/735 (x_refsource_MISC)
- https://leanprover.zulipchat.com/#narrow/channel/113488-general/topic/weird.20behavior.20in.20loogle.20searchbar/near/578502003 (x_refsource_MISC)