MCP Memory Keeper: Arbitrary local file read in mcp-memory-keeper context_import via unvalidated filePath

{
  "id": "d66976b235500ee8cba4de8a1c7bcd73ff35dbab532efcf0297dc0d23d3abee1",
  "url": "https://osv.dev/vulnerability/CVE-2026-54561",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "MCP Memory Keeper: Arbitrary local file read in mcp-memory-keeper context_import via unvalidated filePath",
    "summary": "MCP Memory Keeper is an MCP server for persistent context management in AI coding assistants. Prior to 0.13.0, context_import in src/index.ts passes the caller-controlled filePath directly to fs.readFileSync without restricting the path to an export directory. An MCP client, including an LLM agent induced to call the tool, can use ../ traversal or an absolute path to target any file readable by the server process. A valid JSON file is parsed and imported into the caller's session, allowing its full contents to be retrieved through context_get or context_export, while JSON.parse errors for non-JSON files can return leading file bytes in a SyntaxError message. The two disclosure modes can expose other exported sessions, JSON credentials or service-account files, environment files, and portions of SSH keys or other local files. This issue is fixed in version 0.13.0.",
    "evidence": "osv:CVE-2026-54561",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-54561",
      "aliases": [
        "CVE-2026-54561",
        "GHSA-f7wf-v2vw-mpcx"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/mkreyman/mcp-memory-keeper",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "84f6dfa692736a34ff36e2d2cf2188b71facf73b"
                },
                {
                  "fixed": "58640c22e037572e0b03bc0aa25d015ea98dcc6d"
                },
                {
                  "fixed": "b9369568468007c85f8aec3ae09ca6f611285bc5"
                },
                {
                  "fixed": "e0ab521a9e8343bcab1ca60ccc3601e4d86eaa97"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.13.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "58640c22e037572e0b03bc0aa25d015ea98dcc6d"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "b9369568468007c85f8aec3ae09ca6f611285bc5"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "e0ab521a9e8343bcab1ca60ccc3601e4d86eaa97"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "84f6dfa692736a34ff36e2d2cf2188b71facf73b"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v0.13.0"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.12.2",
            "v0.12.1",
            "v0.12.0",
            "v0.11.0",
            "v0.10.2",
            "v0.8.5"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54561.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:31.194088548Z",
      "provider": "osv",
      "references": [
        "https://github.com/mkreyman/mcp-memory-keeper/releases/tag/v0.13.0",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54561.json",
        "https://github.com/mkreyman/mcp-memory-keeper/security/advisories/GHSA-f7wf-v2vw-mpcx",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-54561",
        "https://github.com/mkreyman/mcp-memory-keeper/issues/35",
        "https://github.com/mkreyman/mcp-memory-keeper/commit/58640c22e037572e0b03bc0aa25d015ea98dcc6d",
        "https://github.com/mkreyman/mcp-memory-keeper/commit/b9369568468007c85f8aec3ae09ca6f611285bc5",
        "https://github.com/mkreyman/mcp-memory-keeper/commit/e0ab521a9e8343bcab1ca60ccc3601e4d86eaa97",
        "https://github.com/mkreyman/mcp-memory-keeper/pull/36"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-209",
          "CWE-22"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54561.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-54561",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 498121,
  "published_at": "2026-09-15T16:32:01.307+00:00"
}