Server-Side Request Forgery Vulnerability in IBM Langflow OSS
CVE-2026-10129

8.5HIGH

Key Information:

Vendor

IBM
Status
Langflow Oss
Vendor
CVE Published:
30 June 2026

What is CVE-2026-10129?

IBM Langflow OSS versions 1.0.0 to 1.9.3 are susceptible to a Server-Side Request Forgery (SSRF) bypass in the API Request component. An authenticated user with flow author role privileges has the capability to exploit this vulnerability by manipulating the follow_redirects parameter to redirect public URLs to internal resources. This flaw arises from inadequate validation of redirect destinations, allowing attackers to reach sensitive internal services, access cloud metadata services, and reveal private network information typically protected by SSRF mechanisms. Exploiting this vulnerability can lead to the unauthorized disclosure of critical data, including authentication tokens and internal API responses, posing significant security risks.

Affected Version(s)

Langflow OSS 1.0.0 <= 1.9.3

References

https://www.ibm.com/support/pages/node/7277561
vendor-advisorypatch

CVSS V3.1

Score:
8.5
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.