Is this vulnerability remotely exploitable over the network?

Yes, in typical deployments it can be exploited remotely by any user who can authenticate to the LibreChat instance and access the affected API endpoint, without needing direct shell or container access.

What level of access does an attacker need to exploit this issue?

The attacker needs valid authenticated access to LibreChat but does not necessarily require elevated or administrative privileges. Once authenticated, a single crafted request to the MCP stdio transport path can trigger root-level command execution within the container.

What is the safest general fix pattern for this type of vulnerability?

The safest approach is to remove or strongly constrain generic command-execution features exposed via APIs, and ensure any remaining sensitive operations are strictly guarded by role-based authorization checks, input validation, and least-privilege process execution.

Severity:

CRITICAL RISK

(9.1)

Improper Authorization Enabling Root Command Execution (CWE-285) in LibreChat MCP Stdio Transport

CVE-2026-22252

Published:

Jan 12, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

Remote Code Execution on the Router

April 6, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Remote Code Execution on Router Firmware

April 6, 2026

Vulnerability Type

Category:

Improper Authorization

CWE:

CWE-285

Impact:

Remote Code Execution as Root (Post-Authentication)

Severity:

CRITICAL RISK

(9.1)

CVSS Version:

3.1

Vulnerability Type

Category:

Improper Authorization

CWE:

CWE-285

Impact:

Remote Code Execution as Root (Post-Authentication)

Severity:

CRITICAL RISK

(9.1)

CVSS Version:

3.1

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Improper Authorization Enabling Root Command Execution (CWE-285) in LibreChat MCP Stdio Transport

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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