CVE-2026-54561: Mkreyman Mcp-Memory-Keeper

Medium severity, CVSS 6.2. EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Affected products

• Mkreyman Mcp-Memory-Keeper: before 0.13.0 (fixed in 0.13.0)

Published 2026-09-15. Last modified 2026-09-30.