Blinko: Admin RCE - MCP Server Command Injection

{
  "id": "a1643e60af283fa601afedf99aa421ddea4e7a2cf257da387a4c92f2c80942cf",
  "url": "https://osv.dev/vulnerability/CVE-2026-23882",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Blinko: Admin RCE - MCP Server Command Injection",
    "summary": "Blinko is an AI-powered card note-taking project. Prior to version 1.8.4, the MCP (Model Context Protocol) server creation function allows specifying arbitrary commands and arguments, which are executed when testing the connection. This issue has been patched in version 1.8.4.",
    "evidence": "osv:CVE-2026-23882",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-23882",
      "aliases": [
        "CVE-2026-23882",
        "GHSA-59r2-82p8-c56v"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/blinkospace/blinko",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "4533af9df6b876fbba5128fb71b9dcdc118abab9"
                },
                {
                  "fixed": "bef6b770743e87c630db2d00d7049dabd96bfe85"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:blinko:blinko:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.8.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "bef6b770743e87c630db2d00d7049dabd96bfe85"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "4533af9df6b876fbba5128fb71b9dcdc118abab9"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "1.8.4"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.8.3",
            "1.8.2",
            "1.8.1",
            "1.8.0",
            "1.7.1",
            "1.7.0",
            "1.6.6",
            "1.6.5",
            "1.6.3",
            "1.6.2",
            "1.6.1",
            "1.6.0",
            "1.5.5",
            "1.5.4",
            "1.5.3",
            "1.5.2",
            "1.5.0",
            "1.4.0",
            "1.0.7",
            "1.0.6",
            "1.0.4",
            "1.0.3",
            "1.0.2",
            "1.0.1",
            "1.0.0",
            "1.0.0-rc.2",
            "1.0.0-rc.1",
            "1.0.0-alpha.4",
            "1.0.0-beta.3",
            "1.0.0-beta.1",
            "v0.52.4",
            "v0.52.3",
            "v0.52.0",
            "v0.51.1",
            "v0.51.0",
            "v0.50.0",
            "v0.49.4",
            "v0.49.3",
            "v0.49.2",
            "v0.49.1",
            "v0.47.3",
            "v0.47.2",
            "v0.47.1",
            "v0.46.5",
            "v0.46.0",
            "v0.45.3",
            "v0.45.1",
            "v0.45.0",
            "v0.44.1",
            "v0.44.0",
            "v0.43.8",
            "v0.43.7",
            "v0.43.6",
            "v0.43.5",
            "v0.43.4",
            "v0.41.10",
            "v0.41.9",
            "v0.40.5",
            "v0.39.0",
            "v0.38.6",
            "v0.38.5",
            "v0.38.3",
            "v0.38.2",
            "v0.37.22",
            "v0.37.21",
            "v0.37.16",
            "v0.37.14",
            "v0.37.8",
            "v0.37.6",
            "v0.37.5",
            "v0.37.3",
            "v0.37.0",
            "v0.36.12",
            "v0.36.6",
            "v0.36.3",
            "v0.35.7",
            "v0.34.12",
            "v0.35.2",
            "v0.34.7",
            "v0.34.6",
            "v0.34.4",
            "v0.34.3",
            "v0.34.0",
            "v0.33.3",
            "v0.33.1",
            "v0.33.0",
            "v0.32.23",
            "v0.32.16",
            "v0.32.15",
            "v0.32.14",
            "v0.32.12",
            "v0.32.10",
            "v0.32.8",
            "v0.32.3",
            "v0.32.2",
            "v0.32.1",
            "v0.32.0",
            "v0.31.9",
            "v0.31.7",
            "v0.30.6",
            "v0.30.5",
            "v0.30.3",
            "v0.30.2",
            "v0.29.8",
            "v0.29.0",
            "v0.28.1",
            "v0.28.0",
            "v0.27.7",
            "v0.27.6",
            "v0.27.2",
            "v0.27.1",
            "v0.27.0",
            "v0.26.12",
            "v0.25.6",
            "v0.26.11",
            "v0.26.8",
            "v0.26.2",
            "v0.26.1",
            "v0.26.0",
            "v0.25.5",
            "v0.25.3",
            "v0.25.2",
            "v0.25.1",
            "v0.25.0",
            "v0.24.3",
            "v0.24.1",
            "v0.24.0",
            "v0.23.5",
            "v0.21.14",
            "v0.21.8",
            "v0.21.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23882.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:29.841845331Z",
      "provider": "osv",
      "references": [
        "https://github.com/blinkospace/blinko/releases/tag/1.8.4",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23882.json",
        "https://github.com/blinkospace/blinko/security/advisories/GHSA-59r2-82p8-c56v",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-23882",
        "https://github.com/blinkospace/blinko/commit/bef6b770743e87c630db2d00d7049dabd96bfe85"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-78"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23882.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-23882",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 496529,
  "published_at": "2026-03-23T20:52:17.2+00:00"
}