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Medium

launch-editor: escapeCmdArgs() omits % escaping on Windows

Type: advisorySources: OSV

launch-editor allows users to open files with line numbers in editor from Node.js. Prior to 2.14.2, launch-editor did not escape % on Windows when passing an argument to cmd. When an environment variable contained a malicious value, it was possible that that content to be executed. This vulnerability is fixed in 2.14.2.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-112943
Confirmed fixed CVEs
Not specified
Updated in this feed
7 Nov 2026, 14:07 UTC · Revision 1

Source evidence

launch-editor: escapeCmdArgs() omits % escaping on Windows

core-osv · Original source

Published 20 Oct 2026, 14:53 UTC

launch-editor allows users to open files with line numbers in editor from Node.js. Prior to 2.14.2, launch-editor did not escape % on Windows when passing an argument to cmd. When an environment variable contained a malicious value, it was possible that that content to be executed. This vulnerability is fixed in 2.14.2.

osv:CVE-2026-112943
Complete source record
{
  "id": "b5e426201f16382e327aec0fb02b555a92c5b1d5d983543a0c85c926a08d3334",
  "url": "https://osv.dev/vulnerability/CVE-2026-112943",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "launch-editor: escapeCmdArgs() omits % escaping on Windows",
    "summary": "launch-editor allows users to open files with line numbers in editor from Node.js. Prior to 2.14.2, launch-editor did not escape % on Windows when passing an argument to cmd. When an environment variable contained a malicious value, it was possible that that content to be executed. This vulnerability is fixed in 2.14.2.",
    "evidence": "osv:CVE-2026-112943",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-112943",
      "aliases": [
        "CVE-2026-112943",
        "GHSA-698v-4r3x-3vcv"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/vitejs/launch-editor",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "b5334895a00f8000ef3b6a46f2aa9e1a62eb27b4"
                },
                {
                  "fixed": "3c2f9bf2ff8fe63d056a8f9cc52d825b66ca79fc"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.14.2"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "3c2f9bf2ff8fe63d056a8f9cc52d825b66ca79fc"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "b5334895a00f8000ef3b6a46f2aa9e1a62eb27b4"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v2.14.2"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.14.1",
            "v2.14.0",
            "v2.13.2",
            "v2.13.1",
            "v2.13.0",
            "v2.12.0",
            "v2.11.1",
            "v2.11.0",
            "v2.10.0",
            "v2.9.1",
            "v2.9.0",
            "v2.8.2",
            "v2.8.1",
            "v2.8.0",
            "v2.7.0",
            "v2.6.1",
            "v2.6.0",
            "v2.5.0",
            "v2.4.0",
            "v2.3.0",
            "v2.2.1",
            "v2.2.0",
            "v2.1.0",
            "v2.0.0",
            "v1.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-112943.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:50.996973357Z",
      "provider": "osv",
      "references": [
        "https://github.com/vitejs/launch-editor/releases/tag/v2.14.2",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/112xxx/CVE-2026-112943.json",
        "https://github.com/vitejs/launch-editor/security/advisories/GHSA-698v-4r3x-3vcv",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-112943",
        "https://github.com/vitejs/launch-editor/commit/3c2f9bf2ff8fe63d056a8f9cc52d825b66ca79fc",
        "https://github.com/vitejs/launch-editor/pull/155"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-78"
        ],
        "cna_assigner": "GitHub_M",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "8.3.0"
                  },
                  {
                    "fixed": "8.3.3"
                  },
                  {
                    "introduced": "8.2.0"
                  },
                  {
                    "fixed": "8.2.4"
                  },
                  {
                    "introduced": "8.0.0"
                  },
                  {
                    "fixed": "8.1.6"
                  },
                  {
                    "introduced": "7.0.0"
                  },
                  {
                    "fixed": "7.3.7"
                  },
                  {
                    "fixed": "6.4.4"
                  },
                  {
                    "fixed": "1.1.0"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StringRangeExpression"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/112xxx/CVE-2026-112943.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-112943",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 519568,
  "published_at": "2026-10-20T14:53:41.777+00:00"
}