CVE-2026-44653— LibreChat Shared MCP Server View Leaks Decrypted Admin Secrets
Possible ATT&CK Techniques 3AI
T1005 · Data from Local System T1530 · Data from Cloud Storage T1530.001Affected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| danny-avila | LibreChat | < 0.8.4 | affected |
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I. Basic Information for CVE-2026-44653
Vulnerability Information
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Vulnerability Title
LibreChat Shared MCP Server View Leaks Decrypted Admin Secrets
Source: NVD (National Vulnerability Database)
Vulnerability Description
LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. In versions up to and including 0.8.3, users with only `VIEW` access to an MCP server can retrieve the server's decrypted admin-managed secrets through `GET /api/mcp/servers` and `GET /api/mcp/servers/:serverName`. The returned config includes plaintext values for `apiKey.key` and `oauth.client_secret`. This allows viewers of a shared MCP server to exfiltrate the underlying provider credentials. Version 0.8..4 contains a patch. Other remediations include: never returning decrypted admin-managed secrets to non-owners; redacting apiKey.key and oauth.client_secret from all API responses consider returning only boolean presence indicators for secrets, similar to the auth-values route pattern; and, if owners need to edit configs without re-entering secrets, preserving secrets server-side and returning placeholders instead of plaintext.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
通过发送数据的信息暴露
Source: NVD (National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| danny-avila | LibreChat | < 0.8.4 | - |
II. Public POCs for CVE-2026-44653
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-44653 (1)
Same Patch Batch · danny-avila · 2026-06-02 · 4 CVEs total
| CVE-2026-32625 | 9.6 CRITICAL | LibreChat Exfiltrates Server Secrets via MCP Server URL Injection |
| CVE-2026-31942 | 7.1 HIGH | LibreChat has IDOR in API Keys Management that allows any authenticated user to overwrite |
| CVE-2026-44654 | LibreChat: Shared-agent editor can globally delete owner's file records — breaks owner's o |
IV. Related Vulnerabilities
Same product: LibreChat
- CVE-2026-44654
LibreChat: Shared-agent editor can globally delete owner's f - CVE-2026-32625
LibreChat Exfiltrates Server Secrets via MCP Server URL Inje - CVE-2026-31942
LibreChat has IDOR in API Keys Management that allows any au - CVE-2026-34371
LibreChat Affected by Arbitrary File Write via `execute_code - CVE-2026-31951
LibreChat's MCP Server Header Injection Enables OAuth Token
Same vendor: danny-avila
- CVE-2026-44654
LibreChat: Shared-agent editor can globally delete owner's f - CVE-2026-32625
LibreChat Exfiltrates Server Secrets via MCP Server URL Inje - CVE-2026-31942
LibreChat has IDOR in API Keys Management that allows any au - CVE-2026-34371
LibreChat Affected by Arbitrary File Write via `execute_code - CVE-2026-31951
LibreChat's MCP Server Header Injection Enables OAuth Token
Same weakness: CWE-201
- CVE-2026-7184
Mattermost Remote Cluster PATCH API Leaks Authentication Tok - CVE-2026-44487
Axios: Proxy-Authorization Credential Leak to Origin Server - CVE-2026-46481
OpenMetadata: TEST_CONNECTION workflow leaks ingestion-bot J - CVE-2026-42539
IRIS has an Excessive Data Exposure issue - CVE-2026-4035
Environment Variable Resolution Vulnerability in mlflow/mlfl
V. Comments for CVE-2026-44653
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