CVE-2026-7667

HighCVSS 8.8/10Last modified Oct 24, 2026

Description

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.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-22

Affected software

Vendor	Product	Versions
IBM	Langflow OSS	>= 1.0.0, <= 1.10.0

References

https://www.ibm.com/support/pages/node/7278931Vendor Advisory

Timeline

Published: Jul 17, 2026
Last modified: Oct 24, 2026
NVD status: Analyzed

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