{"id":"CVE-2026-55604","revision":"10cca158fafc402f8bd87aace8ddc8c1","records":[{"revision":"10cca158fafc402f8bd87aace8ddc8c1","observedAt":"2026-10-25T14:19:05.298+00:00","statement":{"source":"nvd","id":"CVE-2026-55604","aliases":[],"title":"DeepSeek MCP Server is an MCP server for DeepSeek V4. Starting in version 1.4.2 and prior to version 1.7.0, the process-global `SessionStore` accepts caller-supplied `session_id` values without binding them to any authenticated principal or…","description":"DeepSeek MCP Server is an MCP server for DeepSeek V4. Starting in version 1.4.2 and prior to version 1.7.0, the process-global `SessionStore` accepts caller-supplied `session_id` values without binding them to any authenticated principal or transport session. An attacker can enumerate active session IDs via `deepseek_sessions`, then reuse a victim-controlled `session_id` in `deepseek_chat` to retrieve and continue the victim's conversation context. Version 1.7.0 contains a patch.","state":0,"publishedAt":"2026-07-09T22:17:06.247+00:00","modifiedAt":"2026-07-10T19:20:32.893+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L","score":8.6,"severity":"HIGH"}],"references":["https://github.com/arikusi/deepseek-mcp-server/releases/tag/v1.7.0","https://github.com/arikusi/deepseek-mcp-server/security/advisories/GHSA-fh3r-g96v-f578"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-55604","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-639"],"productCriteria":[],"sourceDates":{"published":"2026-07-09T22:17:06.247","lastModified":"2026-07-10T19:20:32.893"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-55604","identifiers":["CVE-2026-55604"]},"retained":false,"historicalAffected":[]}],"coverage":[]}