Insufficient Session Management in IBM Langflow OSS
CVE-2026-81268

8.1HIGH

Key Information:

Vendor

IBM
Status
Langflow Oss
Vendor
CVE Published:
10 September 2026

What is CVE-2026-81268?

IBM Langflow OSS versions 1.0.0 to 1.11.5 possess a vulnerability that could enable a remote authenticated attacker to exploit insufficient session expiration protocols relating to API keys. If a user is deactivated, their session may not terminate properly, allowing unauthorized flow execution that can result in the disclosure of sensitive data.

Affected Version(s)

Langflow OSS 1.0.0 <= 1.11.5

References

https://www.ibm.com/support/pages/node/7286662
vendor-advisorypatch

CVSS V3.1

Score:
8.1
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

.