CVE Feed

    Dashboard / CVE / CVE-2026-105740

    CVE-2026-105740

    Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.0, any authenticated Langflow user can achieve Remote Code Execution (RCE) on the server by adding an MCP server with the "Stdio" transport. The user-supplied command field is passed directly to bash -c "exec {command}" with zero validation, no allowlisting, and no sandboxing. The command executes immediately when the server list is fetched. Additionally, the env field allows arbitrary environment variable injection (e.g., LD_PRELOAD, PATH override). This vulnerability is fixed in 1.9.0.

    Published:Oct 5, 2026
    Last Modified:Oct 6, 2026
    EPS:Oct 5, 2026
    EPSS Score:0.00589
    CVSS Score:9.9

    Affected Products

    Vendor
    Langflow
    Product
    Langflow

    Exploits

    No exploit reference

    Related CVEs

    CVE-2026-18894 (CVSS 6.5) — IBM Langflow OSS 1.0.0 through 1.12.4 could allow a remote attacker to trigger pre-existing stored Python comp…
    CVE-2026-77817 (CVSS 6.5) — IBM Langflow OSS 1.0.0 through 1.12.4 could allow a remote authenticated attacker to obtain sensitive informat…
    CVE-2026-77819 (CVSS 6.5) — IBM Langflow OSS 1.0.0 through 1.12.3 could allow a remote authenticated attacker to overwrite arbitrary files…
    CVE-2026-90991 (CVSS 6.5) — IBM Langflow OSS 1.0.0 through 1.12.4 could allow a remote authenticated attacker to cause a denial of service…
    CVE-2026-93680 (CVSS 9.8) — IBM Langflow OSS 1.0.0 through 1.12.8 could allow a remote attacker to bypass security restrictions due to imp…
    CVE-2026-102590 (CVSS 5) — IBM Langflow OSS 1.0.0 through 1.12.3 could allow a remote authenticated attacker to obtain sensitive informat…
    CVE-2026-103092 (CVSS 8.5) — IBM Langflow OSS 1.0.0 through 1.12.3 could allow a remote authenticated attacker to execute arbitrary SQL com…
    CVE-2026-101288 (CVSS 8.8) — IBM Langflow OSS 1.0.0 through 1.12.3 could allow a remote authenticated attacker to execute arbitrary code du…
    CVE-2026-104308 (CVSS 4.3) — IBM Langflow OSS 1.0.0 through 1.12.3 could allow a remote authenticated attacker to cause a denial of service…
    CVE-2026-104309 (CVSS 6.5) — IBM Langflow OSS 1.0.0 through 1.12.3 could allow a remote authenticated attacker to obtain sensitive informat…

    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