Security Flaw in IBM Langflow Product Line Affects Docker-Based MCP Servers
CVE-2026-17626

8.8HIGH

Key Information:

Vendor

IBM
Status
Langflow Oss
Vendor
CVE Published:
5 August 2026

What is CVE-2026-17626?

The vulnerability in IBM Langflow products allows authenticated attackers to read, modify, or expose sensitive files on Docker-based MCP servers. This occurs due to inadequate filtering of risky Docker volume-mount and device-mapping arguments, which may lead to unauthorized access and potential data breaches. Users are urged to apply recommended security patches to mitigate these risks effectively.

Affected Version(s)

Langflow OSS 1.0.0 <= 1.10.3

References

https://www.ibm.com/support/pages/node/7282147
vendor-advisorypatch

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

CVEs reported to IBM: CVE-2026-8446 by odgrso (GMO CyberSecurity by Ierae, Inc.); CVE-2026-17626 by Thai Son Dinh (VinSOC Labs, (R&amp;D).
.