CVE-2026-33010: Wildcard CORS in mcp-memory-service exposes agent memories
Versions of the open-source mcp-memory-service memory backend prior to 10.25.1 configured FastAPI CORSMiddleware with allow_origins='*' and allow_credentials=True when the HTTP server was enabled, letting any website read API responses cross-origin. Combined with anonymous access, any malicious site could silently read, modify, and delete all stored memories; fixed in 10.25.1.
Disclosed 20 March 2026 · Record updated 13 September 2026
Impact
Any malicious website visited by a user could read, modify, or delete all memories stored in an exposed mcp-memory-service HTTP server without credentials.
Our coverage
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Sources
- nvd.nist.govhttps://nvd.nist.gov/vuln/detail/CVE-2026-33010
