{"data":{"id":"e446e79d-7944-42f0-a3aa-532a46a7a259","title":"GHSA-84hp-mqvj-3p8h: mcp-memory-service: Missing Authentication on Document API Endpoints Allows Unauthenticated Memory Read/Write/Delete","summary":"mcp-memory-service has a critical authentication bypass vulnerability where all endpoints under `/api/documents/*` lack authentication checks, allowing unauthenticated attackers to read, write, and delete memories even when the server has API key or OAuth protection enabled. This is particularly dangerous because the `/api/memories` endpoints correctly enforce authentication, creating an inconsistent security boundary that attackers can exploit.","solution":"N/A -- no mitigation discussed in source.","labels":["security"],"sourceUrl":"https://github.com/advisories/GHSA-84hp-mqvj-3p8h","publishedAt":"2026-07-02T15:26:23.000Z","cveId":"CVE-2026-50027","cweIds":null,"cvssScore":null,"cvssSeverity":"critical","severity":"critical","attackType":["supply_chain"],"issueType":"vulnerability","affectedPackages":["mcp-memory-service@< 10.67.1 (fixed: 10.67.1)"],"affectedVendors":["LangChain"],"affectedVendorsRaw":["mcp-memory-service","MCP (Model Context Protocol)"],"classifierModel":"claude-haiku-4-5-20251001","classifierPromptVersion":"v3","cvssVector":null,"attackVector":null,"attackComplexity":null,"privilegesRequired":null,"userInteraction":null,"exploitMaturity":"unknown","epssScore":0,"patchAvailable":true,"disclosureDate":"2026-07-02T15:26:23.000Z","capecIds":null,"crossRefCount":0,"attackSophistication":"trivial","impactType":["confidentiality","integrity","availability"],"aiComponentTargeted":"api","llmSpecific":false,"classifierConfidence":0.95,"researchCategory":null,"atlasIds":["AML.T0010"]}}