DeDeveloper23 codebase-mcp RepoMix codebase.ts saveCodebase os command injection

{
  "id": "1b76406160794a572676aef8d10753b20466a2a5a1f78a5b17c46c7f14fe8d84",
  "url": "https://osv.dev/vulnerability/CVE-2026-5023",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DeDeveloper23 codebase-mcp RepoMix codebase.ts saveCodebase os command injection",
    "summary": "A vulnerability has been found in DeDeveloper23 codebase-mcp up to 3ec749d237dd8eabbeef48657cf917275792fde6. This vulnerability affects the function getCodebase/getRemoteCodebase/saveCodebase of the file src/tools/codebase.ts of the component RepoMix Command Handler. Such manipulation leads to os command injection. The attack needs to be performed locally. The exploit has been disclosed to the public and may be used. This product implements a rolling release for ongoing delivery, which means version information for affected or updated releases is unavailable. The project was informed of the problem early through an issue report but has not responded yet.",
    "evidence": "osv:CVE-2026-5023",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2026-5023",
      "aliases": [
        "CVE-2026-5023"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/dedeveloper23/codebase-mcp",
              "type": "GIT",
              "events": [
                {
                  "introduced": "3ec749d237dd8eabbeef48657cf917275792fde6"
                },
                {
                  "last_affected": "3ec749d237dd8eabbeef48657cf917275792fde6"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "3ec749d237dd8eabbeef48657cf917275792fde6"
                      },
                      {
                        "last_affected": "3ec749d237dd8eabbeef48657cf917275792fde6"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  }
                ]
              }
            }
          ],
          "versions": [
            "3ec749d237dd8eabbeef48657cf917275792fde6"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-5023.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:20.677714423Z",
      "provider": "osv",
      "references": [
        "https://github.com/DeDeveloper23/codebase-mcp/",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/5xxx/CVE-2026-5023.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-5023",
        "https://vuldb.com/submit/778348",
        "https://vuldb.com/vuln/353907",
        "https://github.com/DeDeveloper23/codebase-mcp/issues/7",
        "https://vuldb.com/vuln/353907/cti"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-77",
          "CWE-78"
        ],
        "cna_assigner": "VulDB",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/5xxx/CVE-2026-5023.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-5023",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 486582,
  "published_at": "2026-03-29T02:00:15.117+00:00"
}