Improper Shared-State Handling in IBM Langflow OSS Leads to Security Risks
CVE-2026-10140

9.6CRITICAL

Key Information:

Vendor

IBM
Status
Langflow Oss
Vendor
CVE Published:
30 June 2026

What is CVE-2026-10140?

IBM Langflow OSS versions 1.0.0 through 1.10.0 are affected by a vulnerability that involves improper handling of shared states. This issue allows authenticated attackers to manipulate cached states, enabling the reuse of API clients across tenant boundaries. As a result, requests made by one user could be processed with the credentials of another, leading to risks such as cross-tenant billing and accountability errors. Users of the affected versions are advised to review the vendor's advisory for remediation steps.

Affected Version(s)

Langflow OSS 1.0.0 <= 1.10.0

References

https://www.ibm.com/support/pages/node/7278209
vendor-advisorypatch

CVSS V3.1

Score:
9.6
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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