CVE-2026-7528 Unauthenticated File Upload Vulnerability Allows Disk Space Exhaustion and Path Disclosure in Langflow OSS
Unauthenticated attackers can upload files to exhaust disk space and disclose paths in IBM Langflow OSS, causing denial of service.
- 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-2026-7528?
CVE-2026-7528 is a high-severity denial of service vulnerability in Langflow Langflow, published on 27 May 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 1.9.0 could allow a denial of service due to uncontrolled resource consumption.
Weakness: CWE-400
Which versions are affected by CVE-2026-7528?
It affects 1 product.
Products include Langflow Langflow.
How do I fix CVE-2026-7528?
No fix has been published for CVE-2026-7528 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-7528 being exploited?
There is no known exploitation of CVE-2026-7528 in the wild and no public exploit code.
Other vulnerabilities in Langflow Langflow
Sources
Also known as GHSA-vppx-25hc-f892.