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EUVD-2026-328614

2026-10-06T03:09:40.581514+00:00

EUVD-2026-328614

fkie_cve-2026-48814

2026-10-06T03:09:40.581550+00:00

Network-AI is a TypeScript/Node.js multi-agent orchestrator. In versions 5.7.1 and earlier, the MCP SSE server allows unauthenticated cross-origin MCP tool invocation due to an empty default secret. This issue was partially addressed by CVE-2026-46701 in version 5.4.5 by closing the CORS flaw (with Access-Control-Allow-Origin now set only for localhost origins), but the empty-default-secret flaw described in the title remained: the SSE MCP server still defaulted to an empty secret, _isAuthorized() still returned true when the secret was empty, and a non-loopback bind only produced a warning. As a result, the server still ran fully unauthenticated by default. Any non-browser caller (for example, curl, SSRF, or a 0.0.0.0 bind) could invoke all 22 MCP tools (config_set, agent_spawn, blackboard_write, token_*) with no credentials. This issue was fixed in version 5.7.2.

GHSA-r78r-rwrf-rjwp — Network-AI: CVE-2026-46701 fix incomplete — empty default secret still authorizes all requests

2026-10-06T03:09:40.581587+00:00

Affected: npm: network-ai

## Advisory / Disclosure

# Network-AI — CVE-2026-46701 fix is incomplete: the "Empty Default Secret" unauth path survives

**Target:** Jovancoding/Network-AI (npm `network-ai`), **latest v5.7.1** **Status:** the advisory ("Unauthenticated Cross-Origin MCP Tool Invocation via Empty Default Secret") named three flaws. The fix (5.4.5) closed the **CORS** flaw (`Access-Control-Allow-Origin` is now set only for localhost origins), but left the **empty-default-secret** flaw the title is about: the SSE MCP server still defaults to an empty secret, `_isAuthorized()` still returns `true` when the secret is empty, and a non-loopback bind only **warns**. So the server still runs **fully unauthenticated by default** — any non-browser caller (curl, SSRF, or a `0.0.0.0` bind) can invoke all 22 MCP tools (`config_set`, `agent_spawn`, `blackboard_write`, `token_*`) with no credentials. **Class:** CWE-306/CWE-862 Missing Authentication — incomplete fix. **Methodology:** M1 incomplete-fix audit (anchor = the 5.4.5 fix; sibling-walk on latest v5.7.1, executed). **Severity:** High (matches parent; the browser amplifier is removed, so exploitation now needs non-browser reach — SSRF or a non-loopback bind, which the fix only warns about).

## What the fix did and didn't do (verified on latest v5.7.1) | advisory flaw | latest v5.7.1 | |---|---| | wildcard CORS (`ACAO: *`) | **FIXED** — `lib/mcp-transport-sse.ts` sets `ACAO` only when `origin` matches `^https?://(localhost\|127\.0\.0\.1)(:\d+)?$`…