Arbitrary Code Execution Vulnerability in IBM Langflow Software
CVE-2026-85025

9.8CRITICAL

Key Information:

Vendor

IBM
Status
Langflow Oss
Vendor
CVE Published:
10 September 2026

What is CVE-2026-85025?

A vulnerability in IBM's Langflow software presents significant security risks, enabling unauthenticated attackers to execute arbitrary code. This flaw arises from insufficient enforcement of security constraints and inadequate session isolation controls, particularly affecting publicly shared MCP project endpoints. Attackers can potentially gain access to sensitive chat sessions and manipulate data, greatly compromising system integrity and confidentiality.

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:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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