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TI-2026-71148 Aliases CVE-2026-109332GHSA-pfmh-9x5p-7vh5

CORS origin validation error in Network-AI MCP SSE transport

Priority MEDIUM 45CWE-346Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
Present
Impact type
Security bypass
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-346.

Summary

Network-AI (npm network-ai) before 5.15.2 reflects localhost Origins into the Access-Control-Allow-Origin header in McpSseServer._handleRequest regardless of the bind interface (CWE-346). When the server binds a non-loopback address, a victim who visits an attacker page with a localhost Origin lets that page read unauthenticated endpoints such as /health cross-origin.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00143 3rd percentileScored 2026-11-07
Fix Fixed Network-AI (Jovancoding): 5.15.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
JovancodingNetwork-AIbefore 5.15.25.15.2Patch availableCNA
  • Network-AI VendorJovancoding Affected before 5.15.2 Fixed in 5.15.2 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:network-ai:network-ai:*:*:*:*:*:*:*:*——Jovancoding
  • cpe:2.3:a:network-ai:network-ai:*:*:*:*:*:*:*:* Versions — — ·Jovancoding

Remediation

Upgrade Network-AI to version 5.15.2, which fixes this flaw.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA Network-AI (Jovancoding) Fixed in 5.15.2

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Jovancoding Network-AI 5.15.2

    3 records Highest priority Priority MEDIUM 2 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2026-71146 Cross-site WebSocket hijacking in Network-AI DashboardServerPriority MEDIUM 57
    • TI-2026-71147 Deny pattern bypass in Network-AI ClaudeHookBridge hookPriority LOW 34
    Show all 3 records →

Timeline

  1. 2026-10-12 Threatist record created from CVE-2026-109332
  2. 2026-10-12 Alias added: GHSA-pfmh-9x5p-7vh5
  3. 2026-10-15 CISA SSVC decision points changed
  4. 2026-10-15 Priority changed: LOW → MEDIUM

References

Advisory 1

  • TI-2026-46183 Network-AI 5.12.2 through 5.13.3 Missing Authorization via ApprovalInbox CVSS 4.0CRITICAL 9.3
  • TI-2026-36083 Network-AI: Empty default secret still authorizes all requests (Incomplete fix for CVE-2026-46701) CVSS 3.1CRITICAL 9.1
  • TI-2026-83679 Path traversal in Network-AI sanitizer exposes files outside sandbox CVSS 4.0HIGH 8.7
  • TI-2026-46184 Network-AI before 5.13.4 Cryptographic Signature Verification Bypass CVSS 4.0HIGH 8.8
  • TI-2026-38985 Network-AI has an an OS Command Injection issue CVSS 3.1CRITICAL 9.9
  • TI-2026-83677 Path traversal in Network-AI FileJobStore lets attackers read or delete files CVSS 4.0HIGH 8.7
See all 19 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences