Low · CVSS 2.3CVE-2026-109332

Network-AI before 5.15.2 CORS Origin Validation Error in MCP SSE TransportCVE-2026-109332

Answer in brief

CVE-2026-109332 records a Low severity (CVSS 2.3) vulnerability in Network-AI before 5.15.2 CORS Origin Validation Error in MCP SSE Transport. The current sources do not mark it as known exploited. The current feed maps Jovancoding/Network-AI (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 12, 2026Updated Oct 12, 2026Source checked Oct 12, 2026First seen by HOL Oct 12, 2026Material review Oct 12, 2026

Upstream Advisory

Key facts

Risk: Low · CVSS 2.3
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 2.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Jovancoding/Network-AI (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Jovancoding/Network-AIgeneric	>=0 <5.15.2	5.15.2

Recommended response

Check inventory. Check lockfiles and deployed manifests for Jovancoding/Network-AI.
Review the reported fix. Update Jovancoding/Network-AI to 5.15.2 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Oct 12, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 12, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Oct 12, 2026

Sources and claim methodology

Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.