CVE-2026-7667: Path Traversal Vulnerability in API Request Component Content-Disposition Header Processing
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.
Other sources
Langflow OSS 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.,
— IBM
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
IBM Langflow OSSto a version that resolves this vulnerability.Fixed in 1.10.1
Event History
Frequently Asked Questions
What is the severity of CVE-2026-7667?
The severity of CVE-2026-7667 is rated as high with a score of 8.8.
How do I fix CVE-2026-7667?
To fix CVE-2026-7667, upgrade IBM Langflow OSS to version 1.10.1 or later.
What type of vulnerability is CVE-2026-7667?
CVE-2026-7667 is a Path Traversal vulnerability affecting the API request component.
Who can exploit CVE-2026-7667?
An authenticated attacker can exploit CVE-2026-7667 by manipulating the Content-Disposition header.
What are the potential impacts of CVE-2026-7667?
Exploiting CVE-2026-7667 can lead to arbitrary file write operations on the affected system.