Improper Access Control Vulnerability in IBM Langflow OSS
CVE-2026-12945

7.1HIGH

Key Information:

Vendor

IBM
Status
Langflow Oss
Vendor
CVE Published:
30 July 2026

What is CVE-2026-12945?

IBM Langflow OSS versions 1.0.0 through 1.10.1 are susceptible to an improper access control vulnerability, which allows authenticated users to access and manipulate other users' build jobs. This issue stems from insufficient controls on log retrieval and unauthenticated build endpoints, posing significant security risks by potentially exposing sensitive user data and operational integrity. Users are urged to upgrade to the fixed versions to mitigate these vulnerabilities.

Affected Version(s)

Langflow OSS 1.0.0 <= 1.10.1

References

https://www.ibm.com/support/pages/node/7279994
vendor-advisorypatch

CVSS V3.1

Score:
7.1
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.