Arbitrary File Write Vulnerability in IBM Langflow Products
CVE-2026-7667

8.8HIGH

Key Information:

Vendor

IBM
Status
Langflow Oss
Vendor
CVE Published:
17 July 2026

What is CVE-2026-7667?

IBM Langflow OSS versions from 1.0.0 to 1.10.0 are susceptible to an arbitrary file write vulnerability that allows authenticated attackers to create malicious flows. By manipulating the Content-Disposition header of responses, attackers can direct the system to write files to any path within the Langflow process's access. This exploitation could lead to unauthorized file modifications and compromises system integrity.

Affected Version(s)

Langflow OSS 1.0.0 <= 1.10.0

References

https://www.ibm.com/support/pages/node/7278931
vendor-advisorypatch

CVSS V3.1

Score:
8.8
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

.