Remote Command Execution in IBM Langflow OSS Product
CVE-2026-17623

8.8HIGH

Key Information:

Vendor

IBM
Status
Langflow Oss
Vendor
CVE Published:
5 August 2026

What is CVE-2026-17623?

IBM Langflow OSS versions 1.0.0 to 1.10.3 are susceptible to a remote command execution vulnerability. This results from improper validation of command inputs within MCP server configurations. An authenticated attacker could exploit this flaw to execute arbitrary commands on the server, posing significant security risks. It is crucial for users to review the vendor's advisory for available patches and mitigation steps to safeguard their systems.

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).
.