Improper Validation in IBM Langflow OSS Allows Remote Code Execution
CVE-2026-81940

8.8HIGH

Key Information:

Vendor

IBM
Status
Langflow Oss
Vendor
CVE Published:
10 September 2026

What is CVE-2026-81940?

IBM Langflow OSS versions 1.0.0 to 1.11.5 are susceptible to remote code execution vulnerabilities due to inadequate handling of special characters in flow display names, enabling authenticated attackers to execute arbitrary code.

Affected Version(s)

Langflow OSS 1.0.0 <= 1.11.5

References

https://www.ibm.com/support/pages/node/7286666
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

.