CVE-2026-32732

info

Description

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.

References

https://leanprover.zulipchat.com/#narrow/channel/113488-general/topic/weird.20behavior.20in.20loogle.20searchbar/near/578502003

https://github.com/leanprover/vscode-lean4/security/advisories/GHSA-6ggm-pwr9-r5h2

https://github.com/leanprover/vscode-lean4/pull/735

Details

Source: Mitre, NVD

Published: 2026-03-13

Risk Information

CVSS v2

Base Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 6.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Severity: Medium

0

EPSS

EPSS: 0.00045