CVE Feed

    Dashboard / CVE / CVE-2026-30617

    CVE-2026-30617

    LangChain-ChatChat 0.3.1 contains a remote code execution vulnerability in its MCP STDIO server configuration and execution handling. A remote attacker can access the publicly exposed MCP management interface and configure an MCP STDIO server with attacker-controlled commands and arguments. When the MCP server is started and MCP is enabled for agent execution, subsequent agent activity triggers execution of arbitrary commands on the server. Successful exploitation allows arbitrary command execution within the context of the LangChain-ChatChat service.

    Published:Apr 15, 2026
    Last Modified:Apr 17, 2026
    EPS:Apr 15, 2026
    EPSS Score:0.00144
    CVSS Score:8.6

    Affected Products

    Vendor
    Langchain
    Product
    Langchain

    Exploits

    No exploit reference

    Related CVEs

    CVE-2026-44843 (CVSS 8.2) — LangChain is a framework for building agents and LLM-powered applications. Prior to 0.3.85 and 1.3.3, LangChai…
    CVE-2024-58340 (CVSS 8.7) — LangChain versions up to and including 0.3.1 contain a regular expression denial-of-service (ReDoS) vulnerabil…
    CVE-2025-67644 (CVSS 7.3) — LangGraph SQLite Checkpoint is an implementation of LangGraph CheckpointSaver that uses SQLite DB (both sync a…
    CVE-2025-64439 (CVSS 7.4) — LangGraph SQLite Checkpoint is an implementation of LangGraph CheckpointSaver that uses SQLite DB (both sync a…
    CVE-2025-64104 (CVSS 7.3) — LangGraph SQLite Checkpoint is an implementation of LangGraph CheckpointSaver that uses SQLite DB (both sync a…
    CVE-2025-8709 (CVSS 7.3) — A SQL injection vulnerability exists in the langchain-ai/langchain repository, specifically in the LangGraph's…
    CVE-2025-9556 (CVSS 9.8) — Langchaingo supports the use of jinja2 syntax when parsing prompts, which is in turn parsed using the gonja li…
    CVE-2025-45150 (CVSS 9.8) — Insecure permissions in LangChain-ChatGLM-Webui commit ef829 allows attackers to arbitrarily view and download…
    CVE-2025-46059 (CVSS 9.8) — langchain-ai v0.3.51 was discovered to contain an indirect prompt injection vulnerability in the GmailToolkit …
    CVE-2025-2828 (CVSS 10) — A Server-Side Request Forgery (SSRF) vulnerability exists in the RequestsToolkit component of the langchain-co…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High