Description
IBM Langflow OSS 1.0.0 through 1.10.3 Langflow could allow an authenticated attacker to read, modify, or expose sensitive host files via Docker-based MCP servers due to incomplete filtering of dangerous Docker volume-mount and device-mapping arguments.
Published: 2026-08-05
Score: 8.8 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

IBM Langflow OSS versions 1.0.0 through 1.10.3 include an issue where the Model Context Protocol server does not fully filter unsafe Docker volume-mount and device-mapping arguments. An authenticated attacker who can reach the MCP server can therefore read, alter, or expose sensitive files on the host machine, compromising confidentiality and integrity and potentially enabling further lateral movement.

Affected Systems

The vulnerability affects IBM Langflow OSS 1.0.0 through 1.10.3. IBM recommends upgrading to version 1.11.0 or newer to eliminate the flaw. The affected product is IBM Langflow OSS.

Risk and Exploitability

With a CVSS score of 8.8 the flaw is considered high severity. The EPSS score is not available, and the vulnerability is not listed in the CISA KEV catalog. Attack requires authenticated access to the application and local Docker-based MCP servers; appropriate privileges are needed to mount volumes or devices on the host, making privileged or local attackers capable of exploitation.

Generated by OpenCVE AI on August 5, 2026 at 18:37 UTC.

Remediation

Vendor Solution

IBM recommends upgrading to Langflow OSS 1.11.0 or newer https://github.com/langflow-ai/langflow/releases

OpenCVE Recommended Actions

  • Upgrade to Langflow OSS 1.11.0 or newer using the IBM-labeled upgrade path, which removes the unfiltered volume-mount handling.
  • If upgrading is delayed, disable or restrict the use of Docker-based MCP servers so that unauthenticated or casual users cannot invoke the vulnerable code path.
  • Configure or harden the Docker runtime (e.g., use seccomp, AppArmor, or custom device-mapping restrictions) to reject or sandbox dangerous volume-mount and device-mapping arguments, thereby preventing the attacker from accessing sensitive host files.

Generated by OpenCVE AI on August 5, 2026 at 18:37 UTC.

Tracking

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Advisories

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History

Wed, 05 Aug 2026 17:00:00 +0000

Type Values Removed Values Added
Description IBM Langflow OSS 1.0.0 through 1.10.3 Langflow could allow an authenticated attacker to read, modify, or expose sensitive host files via Docker-based MCP servers due to incomplete filtering of dangerous Docker volume-mount and device-mapping arguments.
Title Langflow is affected by security vulnerabilities in Model Context Protocol features
First Time appeared Ibm
Ibm langflow Oss
Weaknesses CWE-266
CPEs cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:langflow_oss:1.10.3:*:*:*:*:*:*:*
Vendors & Products Ibm
Ibm langflow Oss
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Subscriptions

Ibm Langflow Oss
cve-icon MITRE

Status: PUBLISHED

Assigner: ibm

Published:

Updated: 2026-08-05T16:31:13.037Z

Reserved: 2026-07-27T21:01:26.769Z

Link: CVE-2026-17626

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-05T18:30:16Z

Weaknesses
  • CWE-266

    Incorrect Privilege Assignment