{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-49291","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-05-28T20:07:58.862Z","datePublished":"2026-06-19T17:59:48.862Z","dateUpdated":"2026-06-22T17:07:55.536Z"},"containers":{"cna":{"title":"mcp-memory-service: OAuth read-only clients can write and delete memories through MCP tools/call","problemTypes":[{"descriptions":[{"cweId":"CWE-862","lang":"en","description":"CWE-862: Missing Authorization","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.1,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/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/doobidoo/mcp-memory-service/security/advisories/GHSA-2r68-g678-7qr3","tags":["x_refsource_MISC"],"url":"https://github.com/doobidoo/mcp-memory-service/security/advisories/GHSA-2r68-g678-7qr3"},{"name":"https://pypi.org/project/mcp-memory-service/10.65.3","tags":["x_refsource_MISC"],"url":"https://pypi.org/project/mcp-memory-service/10.65.3"}],"affected":[{"vendor":"doobidoo","product":"mcp-memory-service","versions":[{"version":"< 10.65.3","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-06-19T17:59:48.862Z"},"descriptions":[{"lang":"en","value":"mcp-memory-service is a semantic memory layer for AI applications. Prior to version 10.65.3, the HTTP MCP JSON-RPC endpoint at `/mcp` requires only OAuth `read` scope for all requests, then dispatches `tools/call` directly to handlers that include mutating tools. A read-only OAuth client can call `store_memory` and `delete_memory` through MCP even though the corresponding REST endpoints require `write` scope. Version 10.65.3 patches the issue."}],"source":{"advisory":"GHSA-2r68-g678-7qr3","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-22T17:07:36.136160Z","id":"CVE-2026-49291","options":[{"Exploitation":"none"},{"Automatable":"no"},{"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":"2026-06-22T17:07:55.536Z"}}]}}