{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "785aa159f262a02d5791a5d8a8e13c507ac42880"
            },
            {
              "last_affected": "785aa159f262a02d5791a5d8a8e13c507ac42880"
            }
          ],
          "repo": "https://github.com/sigmade/git-mcp-server",
          "type": "GIT"
        }
      ],
      "versions": [
        "785aa159f262a02d5791a5d8a8e13c507ac42880"
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulDB",
    "cwe_ids": [
      "CWE-77",
      "CWE-78"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/4xxx/CVE-2026-4496.json"
  },
  "details": "A vulnerability was found in sigmade Git-MCP-Server up to 785aa159f262a02d5791a5d8a8e13c507ac42880. Affected by this vulnerability is the function child_process.exec of the file src/gitUtils.ts of the component show_merge_diff/quick_merge_summary/show_file_diff. The manipulation results in os command injection. The attack must be initiated from a local position. The exploit has been made public and could be used. This product operates on a rolling release basis, ensuring continuous delivery. Consequently, there are no version details for either affected or updated releases. It is advisable to implement a patch to correct this issue. The vendor was contacted early about this disclosure but did not respond in any way.",
  "id": "CVE-2026-4496",
  "modified": "2026-10-08T02:30:17.686241354Z",
  "published": "2026-03-20T18:32:13.041Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/sigmade/Git-MCP-Server/"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/4xxx/CVE-2026-4496.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4496"
    },
    {
      "type": "ADVISORY",
      "url": "https://vuldb.com/?id.352045"
    },
    {
      "type": "ADVISORY",
      "url": "https://vuldb.com/?submit.773796"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/sigmade/Git-MCP-Server/issues/1"
    },
    {
      "type": "REPORT",
      "url": "https://vuldb.com/?ctiid.352045"
    },
    {
      "type": "FIX",
      "url": "https://github.com/sigmade/Git-MCP-Server/pull/2"
    },
    {
      "type": "EVIDENCE",
      "url": "https://github.com/user-attachments/files/24855745/Git-MCP-Server.bug.pdf"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "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",
      "type": "CVSS_V4"
    }
  ],
  "summary": "sigmade Git-MCP-Server gitUtils.ts child_process.exec os command injection"
}