CVE-2025-49596: MCP Inspector Authentication Bypass and RCE
Attack on AI2 Disclosed vulnerabilityInfrastructure vulnerability
MCP Inspector proxy servers lack authentication between the client and proxy, leading to remote code execution. Unauthenticated requests can launch MCP commands over stdio.
disclosed CVENo confirmed exploitation, so this record is tracked as a disclosed vulnerability and not counted as an incident. It moves into the counts if CISA or the vendor confirms exploitation. Why
Details
- type
- Attack on AIAn AI model, agent or AI-powered product was the thing exploited, abused or leaked.
- categories
- Infrastructure vulnerabilityCVEs and advisories in AI frameworks, inference servers, MCP servers, AI developer tools and hosting stacks.
- Infrastructure vulnerability
- owasp llm top 10
- mitre atlas
- no technique for these categoriesBoth rows are derived from the type and categories (OWASP 2025 edition, ATLAS release 2026.09), not classified per record. How
- severity
- 2 · Disclosed vulnerabilityCVE or vendor advisory, patched or patchable, no confirmed exploitation.
- targets
- Framework / tooling
- products
- MCP Inspector
- incident date
- 13 Jun 2025
- first reported
- 13 Jun 2025
- origin
- GitHub Advisory DatabaseVulnerability record from NVD / the GitHub Advisory Database. This product uses the NVD API but is not endorsed or certified by the NVD.
- classifier confidence
- 0.95 · published at or above 0.80; see the methodology
- tags
- CVE-2025-49596 · mcp · rce
- record
- created 2026-10-18 07:00Z · updated 2026-10-18 07:00Z · json
Sources · 1
- 2025-06-13CVE-2025-49596: MCP Inspector proxy server lacks authentication between the Inspector client and proxyGitHub Advisory Database · github.com/advisories/GHSA-7f8r-222p-6f5g
Titles and links belong to their publishers. The summary above is written by GCD AI RADAR in its own words; data is CC BY-SA 4.0.
Related incidents
- 2025-09-08CVE-2025-58444: MCP Inspector Vulnerable to Command Execution via XSS2 Disclosedon AIInfra vuln1 src
- 2025-07-11CVE-2025-3933: Transformers vulnerable to ReDoS in DonutProcessor2 Disclosedon AIInfra vuln2 src
- 2025-07-10Integer Overflow Vulnerability in llama.cpp2 Disclosedon AIInfra vuln1 src
- 2025-07-10CVE-2025-6211: LlamaIndex vulnerable to data loss via MD5 hash collisions2 Disclosedon AIInfra vuln1 src
- 2025-07-09CVE-2025-6514: mcp-remote vulnerable to OS command injection2 Disclosedon AIInfra vuln1 src
- 2025-07-08CVE-2025-53372: Command injection vulnerability in node-code-sandbox-mcp2 Disclosedon AIInfra vuln1 src