OAuth Misconfiguration in mcp-memory-service by Doobidoo
CVE-2026-49291

8.1HIGH

Key Information:

Vendor

Doobidoo

Status
Mcp-memory-service
Vendor
CVE Published:
19 June 2026

What is CVE-2026-49291?

The mcp-memory-service, utilized for enhancing AI applications, contains a vulnerabilities prior to version 10.65.3, where the HTTP MCP JSON-RPC endpoint at /mcp allows unauthorized access. This issue occurs because the endpoint only requires OAuth read scope for all requests. Consequently, attackers can exploit this misconfiguration to perform sensitive operations like store_memory and delete_memory, which are intended to require a write scope. Version 10.65.3 has been released to rectify this security oversight, ensuring that proper scope checks are enforced.

Affected Version(s)

mcp-memory-service < 10.65.3

References

https://web.archive.org/web/20260508112116/https://github...
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https://github.com/doobidoo/mcp-memory-service/security/a...
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https://pypi.org/project/mcp-memory-service/10.65.3
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CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.