CVE-2026-49291

HIGH EPSS 17.7%
Published Jun 19, 20261w ago · Modified Jun 23, 20261w ago
8.1 CVSS 3.1
High
Find Similar
Published Jun 19, 2026 1w ago
Last Modified Jun 23, 2026 1w ago

Description

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 Details

Base Score
8.1
Exploitability
2.8
Impact
5.2
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
17.7% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-862 Missing Authorization Authorization

References 3

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.