CVE-2026-109332

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.

CVSS v3 3.1 LOW

3.1^/10

CVSS v3 : LOW

Vector :

Exploitability : 1.6 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/Jovancoding/Network-AI/security/advisories/GHSA-4pvg-m42h-c3x2
https://www.vulncheck.com/advisories/network-ai-before-5.15.2-cors-origin-validation-error-in-mcp-sse-transport
https://github.com/Jovancoding/Network-AI/security/advisories/GHSA-4pvg-m42h-c3x2

Configurations

No configuration.

History

15 Oct 2026, 03:17

Type	Values Removed	Values Added
References	~~() https://github.com/Jovancoding/Network-AI/security/advisories/GHSA-4pvg-m42h-c3x2 -~~	() https://github.com/Jovancoding/Network-AI/security/advisories/GHSA-4pvg-m42h-c3x2 -

12 Oct 2026, 17:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-12 17:17

Updated : 2026-10-15 03:17

NVD link : CVE-2026-109332

Mitre link : CVE-2026-109332

CVE.ORG link : CVE-2026-109332

JSON object : View

Products Affected

No product.

CWE

CWE-346

Origin Validation Error

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