High 8.1Published Jun 19, 2026

CVE-2026-49291mcp-memory-service: OAuth read-only clients can write and delete memories through MCP tools/call

Updated under an hour ago (Oct 26, 2026, 7:00 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for doobidoo mcp-memory-service

Exploited in the last 30 days

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.

CVSS: 8.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Weakness (CWE): CWE-862
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Jun 22, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

doobidoo mcp-memory-service doobidoo:mcp_memory_service (from the name)	before 10.65.3	CNA record

References

References

https://web.archive.org/web/20260508112116/https://github.com/doobidoo/mcp-memory-service/	x-refsource-confirm
https://github.com/doobidoo/mcp-memory-service/security/advisories/GHSA-2r68-g678-7qr3	x-refsource-misc
https://pypi.org/project/mcp-memory-service/10.65.3	x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.