TC-2025-0014 · NPM · MCP
[email protected]
CVE-2025-6514 (CVSS 9.6, 437K+ downloads): arbitrary OS command execution when connecting to an untrusted remote MCP server returning a crafted authorization_endpoint URL.
Signed ledger verdict
TC-2025-0014
Known bad (exit 2)
npm:[email protected]
IOC & scope: npm:[email protected] (CVE-2025-6514). Verified by human review and signed into the CC-BY 4.0 OSV v1.6.0 feed.
Run live in Counter Workbench
Signed in /feed.json (.sig).
Deterministic capability profile and taxonomy mapping.
Every artifact in the threat.cafe ledger is profiled across eight execution vectors and mapped to the OWASP Top 10 for Agentic Applications (ASI01-ASI10) and Agentic Skills & Tools (AST01-AST10).
8-Vector Capability X-Ray (ABOM)
-
1. Filesystem
Sensitive paths touched:
None observed -
2. Environment
Variables harvested:
None observed -
3. Network
Outbound egress domains:
remote_mcp_oauth_discovery -
4. Subprocess
Process execution primitives:
open(authorization_endpoint) -> shell command injection on Windows/macOS -
5. Lifecycle
Install / startup hooks:
None observed -
6. OAuth / MCP
Declared scopes:
oauth2:dynamic_client_registration -
7. Obfuscation
Encoding / steganography:
None observed -
8. Provenance
Attestation status:
vulnerable_release_cve_2025_6514
Governance & detector mapping
- OWASP Agentic ASI (2026): ASI02 (Tool Misuse & Exploitation), ASI04 (Agentic Supply Chain Vulnerabilities), ASI05 (Unexpected Code Execution (RCE))
- OWASP Agentic AST (2026): AST02 (Tool & Skill Injection), AST04 (Covert Channel Exfiltration)
- Deterministic rules matched:
RULE_05_PROMPT_EXFIL_SHELL, CONFIG_03_UNPINNED_NPX_UVX
Version scoping & related records
- TC-2026-0108 (npm:[email protected]): status
no_known_bad— Patched release of mcp-remote sanitizing OAuth authorization_endpoint URLs to strictly enforce https:///http:/
Local CLI verification
$ threat-cafe-hook check "npm:[email protected]" [threat.cafe] known_bad: npm:[email protected] (TC-2025-0014) Reason: CVE-2025-6514 (CVSS 9.6, 437K+ downloads): arbitrary OS command execution when connecting Source: https://nvd.nist.gov/vuln/detail/CVE-2025-6514 (credited to JFrog Security Research)
OSV v1.6.0 machine-readable record
Included in /feed.json under CC-BY 4.0 license and verified by /feed.json.sig.
{
"schema_version": "1.6.0",
"id": "TC-2025-0014",
"modified": "2025-07-09T14:00:00Z",
"published": "2025-07-09T14:00:00Z",
"summary": "CVE-2025-6514 (CVSS 9.6, 437K+ downloads): arbitrary OS command execution when connecting to an untrusted remote MCP server returning a crafted authorization_endpoint URL.",
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "mcp-remote"
},
"versions": [
"0.1.14"
]
}
],
"credits": [
{
"name": "JFrog Security Research",
"type": "FINDER"
}
],
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-6514"
},
{
"type": "WEB",
"url": "https://threat.cafe/incidents/tc-2025-0014/"
}
],
"database_specific": {
"target": "npm:[email protected]",
"kind": "mcp",
"verdict": "known_bad",
"ioc": "npm:[email protected] (CVE-2025-6514)",
"artifact_sha256": "2a9df6b31fe4ca1d0389d4d97d9137a819b2416c0fb38cc7c3efc0d77af9376e",
"owasp_asi": [
"ASI02",
"ASI04",
"ASI05"
],
"owasp_ast": [
"AST02",
"AST04"
],
"rules_matched": [
"RULE_05_PROMPT_EXFIL_SHELL",
"CONFIG_03_UNPINNED_NPX_UVX"
],
"abom": {
"fs_sensitive": [],
"env_harvest": [],
"net_egress": [
"remote_mcp_oauth_discovery"
],
"proc_exec": [
"open(authorization_endpoint) -> shell command injection on Windows/macOS"
],
"install_hooks": [],
"oauth_scopes": [
"oauth2:dynamic_client_registration"
],
"obfuscation": [],
"provenance": "vulnerable_release_cve_2025_6514"
},
"license": "CC-BY-4.0",
"record_digest": "sha256:c61506b9ba715ab33a0ddb2b40a8733dfde050c8b76b8d134aa980b8b56ca580",
"release_signature_url": "https://threat.cafe/feed.json.sig"
}
}
Have additional IOCs or a maintainer remediation update for TC-2025-0014?
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