Remote Configuration Bypass in IBM Langflow Product
CVE-2026-9077

8.5HIGH

Key Information:

Vendor

IBM
Status
Langflow Oss
Vendor
CVE Published:
5 August 2026

What is CVE-2026-9077?

IBM Langflow versions from 1.0.0 to 1.10.3 introduce a security vulnerability that allows remote authenticated attackers to circumvent localhost-only restrictions. This flaw enables them to write arbitrary configurations for the MCP server into IDE configuration files residing on the host system, posing a significant risk to system integrity and user data.

Affected Version(s)

Langflow OSS 1.0.0 <= 1.10.3

References

https://www.ibm.com/support/pages/node/7282147
vendor-advisorypatch

CVSS V3.1

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

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

CVEs reported to IBM: CVE-2026-8446 by odgrso (GMO CyberSecurity by Ierae, Inc.); CVE-2026-17626 by Thai Son Dinh (VinSOC Labs, (R&amp;D).
.