Search criteria ⓘ Use full-text search for keyword queries.
Combine vendor, product, and sources to narrow results.
Enable “Apply ordering” to sort by dates instead of relevance.

1 vulnerability by leanprover

CVE-2026-32732 (GCVE-0-2026-32732)

Vulnerability from cvelistv5 – Published: 2026-03-13 21:43 – Updated: 2026-03-16 20:22
VLAI?
Title
XSS in @leanprover/unicode-input-component
Summary
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.
Severity ?
0 (None)
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
CWE
  • CWE-80 - Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
Assigner
References
Impacted products
Vendor Product Version
leanprover vscode-lean4 Affected: < 0.2.0
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-32732",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-16T20:09:27.977368Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-16T20:22:43.428Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "vscode-lean4",
          "vendor": "leanprover",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.2.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 0,
            "baseSeverity": "NONE",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "ACTIVE",
            "vectorString": "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",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-80",
              "description": "CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-13T21:43:22.209Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/leanprover/vscode-lean4/security/advisories/GHSA-6ggm-pwr9-r5h2",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/leanprover/vscode-lean4/security/advisories/GHSA-6ggm-pwr9-r5h2"
        },
        {
          "name": "https://github.com/leanprover/vscode-lean4/pull/735",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/leanprover/vscode-lean4/pull/735"
        },
        {
          "name": "https://leanprover.zulipchat.com/#narrow/channel/113488-general/topic/weird.20behavior.20in.20loogle.20searchbar/near/578502003",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://leanprover.zulipchat.com/#narrow/channel/113488-general/topic/weird.20behavior.20in.20loogle.20searchbar/near/578502003"
        }
      ],
      "source": {
        "advisory": "GHSA-6ggm-pwr9-r5h2",
        "discovery": "UNKNOWN"
      },
      "title": "XSS in @leanprover/unicode-input-component"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-32732",
    "datePublished": "2026-03-13T21:43:22.209Z",
    "dateReserved": "2026-03-13T15:02:00.627Z",
    "dateUpdated": "2026-03-16T20:22:43.428Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}