{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-50027","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-06-02T22:46:02.580Z","datePublished":"2026-08-14T18:52:47.309Z","dateUpdated":"2026-08-17T16:08:00.980Z"},"containers":{"cna":{"title":"mcp-memory-service: Missing Authentication on Document API Endpoints Allows Unauthenticated Memory Read/Write/Delete","problemTypes":[{"descriptions":[{"cweId":"CWE-306","lang":"en","description":"CWE-306: Missing Authentication for Critical Function","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"references":[{"name":"https://web.archive.org/web/20260508112116/https://github.com/doobidoo/mcp-memory-service","tags":["x_refsource_CONFIRM"],"url":"https://web.archive.org/web/20260508112116/https://github.com/doobidoo/mcp-memory-service"},{"name":"https://github.com/advisories/GHSA-84hp-mqvj-3p8h","tags":["x_refsource_MISC"],"url":"https://github.com/advisories/GHSA-84hp-mqvj-3p8h"},{"name":"https://pypi.org/project/mcp-memory-service","tags":["x_refsource_MISC"],"url":"https://pypi.org/project/mcp-memory-service"}],"affected":[{"vendor":"doobidoo","product":"mcp-memory-service","versions":[{"version":"< 10.67.1","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-08-14T18:52:47.309Z"},"descriptions":[{"lang":"en","value":"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."}],"source":{"advisory":"GHSA-84hp-mqvj-3p8h","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-17T15:24:28.617436Z","id":"CVE-2026-50027","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-17T16:08:00.980Z"}}]}}