CVE-2026-9225 Langflow is vulnerable to unauthorized file system access due to path traversal and missing storage path validation
Authenticated attackers can read other users' files via path traversal in the File/Read component, exposing sensitive data.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-9225?
CVE-2026-9225 is a medium-severity path traversal vulnerability in Langflow Langflow, published on 10 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
IBM Langflow OSS 1.0.0 through 1.11.5 Langflow could allow an authenticated attacker to access sensitive files belonging to other users due to improper access control in the File/Read File component. When executing flows through the /api/v1/run/advanced/{flow_id} endpoint, the application allows component inputs to reference storage paths using arbitrary user or flow identifiers without verifying ownership. An attacker with low‑privileged authenticated access can supply a crafted file path pointing to another user’s storage namespace, causing the backend to read and return the contents of files uploaded by other users. This vulnerability bypasses intended authorization checks enforced by the file management API and may result in unauthorized disclosure of sensitive user data.
Weakness: CWE-639
Which versions are affected by CVE-2026-9225?
It affects 1 product.
Products include Langflow Langflow.
How do I fix CVE-2026-9225?
No fix has been published for CVE-2026-9225 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-9225 being exploited?
There is no known exploitation of CVE-2026-9225 in the wild and no public exploit code.
Other vulnerabilities in Langflow Langflow
Sources
Also known as GHSA-v63q-2gxx-5p2w.