{"apiVersion":"1.0","identifier":"CVE-2026-50027","description":"mcp-memory-service is a semantic memory layer for AI applications. Prior to 10.67.1, all HTTP routes under /api/documents/* in mcp-memory-service are served without any authentication dependency, even when the server is configured with an API key (MCP_API_KEY) or OAuth. An unauthenticated remote attacker can upload arbitrary content into the memory store (write), retrieve stored document content (read), and permanently delete memories belonging to authenticated users (delete) — all without supplying any credentials. The /api/memories counterpart correctly enforces authentication, making this an inconsistent and exploitable authentication boundary. This vulnerability is fixed in 10.67.1.","publishedAt":"2026-08-14T19:17:18","lastModifiedAt":"2026-08-17T16:16:57","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-50027","cvssScore":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","epssProbability":0.00503,"riskScore":1.02,"affectedProduct":"mcp-memory-service","affectedVersions":"<10.67.1","vulnerabilityType":"Library","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-50027","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-50027","en":"https://www.redsauce.net/en/cves/CVE-2026-50027","fr":"https://www.redsauce.net/fr/cves/CVE-2026-50027","pt":"https://www.redsauce.net/pt/cves/CVE-2026-50027","de":"https://www.redsauce.net/de/cves/CVE-2026-50027","sk":"https://www.redsauce.net/sk/cves/CVE-2026-50027","el":"https://www.redsauce.net/el/cves/CVE-2026-50027"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-50027"}}