{"id":"CVE-2026-54561","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-54561","generatedAt":"2026-10-28T01:51:06.918Z","title":"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.","description":"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.","published":"2026-09-15T17:17:21.000Z","lastModified":"2026-09-30T17:51:56.000Z","status":"Deferred","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":6.2,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},"cwe":["CWE-22","CWE-209"],"affected":[],"epss":{"score":0.00249,"percentile":0.16133,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.25%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/mkreyman/mcp-memory-keeper/commit/58640c22e037572e0b03bc0aa25d015ea98dcc6d","source":"security-advisories@github.com"},{"url":"https://github.com/mkreyman/mcp-memory-keeper/commit/b9369568468007c85f8aec3ae09ca6f611285bc5","source":"security-advisories@github.com"},{"url":"https://github.com/mkreyman/mcp-memory-keeper/commit/e0ab521a9e8343bcab1ca60ccc3601e4d86eaa97","source":"security-advisories@github.com"},{"url":"https://github.com/mkreyman/mcp-memory-keeper/issues/35","source":"security-advisories@github.com"},{"url":"https://github.com/mkreyman/mcp-memory-keeper/pull/36","source":"security-advisories@github.com"},{"url":"https://github.com/mkreyman/mcp-memory-keeper/releases/tag/v0.13.0","source":"security-advisories@github.com"},{"url":"https://github.com/mkreyman/mcp-memory-keeper/security/advisories/GHSA-f7wf-v2vw-mpcx","source":"security-advisories@github.com"},{"url":"https://github.com/mkreyman/mcp-memory-keeper/issues/35","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-54561","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}