CVE-2026-109332
Network-AI before 5.15.2 CORS Origin Validation Error in MCP SSE Transport
CVSS Score
3.1
EPSS Score
0.0%
EPSS Percentile
0th
Network-AI (npm network-ai) before 5.15.2 contains an origin validation error in McpSseServer._handleRequest in lib/mcp-transport-sse.ts that reflects localhost Origins into Access-Control-Allow-Origin regardless of bind interface. When the server binds a non-loopback address, an attacker page with a localhost Origin visited by a victim can read unauthenticated endpoints like /health cross-origin.
| CWE | CWE-346 |
| Vendor | jovancoding |
| Product | network-ai |
| Published | Oct 12, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Affected Versions
Jovancoding / Network-AI
0 < 5.15.2