CVE-2026-7667

IBM Langflow OSS 1.0.0 through 1.10.0 allows an authenticated attacker to create a malicious flow pointing to an attacker-controlled URL that returns a specially crafted Content-Disposition header (e.g., filename="../../../target/path" ), enabling arbitrary file write operations with attacker-controlled content to any path accessible by the Langflow process.

Score

CVSS 3.1 8.8 High

Status

Analyzed - psirt@us.ibm.com

Published

2026-07-17

Last modified

2026-10-24

Weaknesses

CWE-22

Affected products

• Langflow Oss (Ibm)
• Langflow (Langflow)

References

• https://www.ibm.com/support/pages/node/7278931