Description
The MCP SSE endpoint in oatpp-mcp returns an instance pointer as the session ID, which is not unique nor cryptographically secure. This allows network attackers with access to the oatpp-mcp server to guess future session IDs and hijack legitimate client MCP sessions, returning malicious responses from the oatpp-mcp server.
INFO
Published Date :
2025-10-20T16:13:43.527Z
Last Modified :
2025-10-20T16:33:47.787Z
Source :
JFROG
AFFECTED PRODUCTS
The following products are affected by CVE-2025-6515 vulnerability.
| Vendors | Products |
|---|---|
| Oatpp |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2025-6515.
CVSS Vulnerability Scoring System
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact