CVE-2026-8481 Remote Code Execution via Code Validation Endpoint
Authenticated attackers can execute arbitrary system commands via the code validation endpoint due to unsafe use of exec(), requiring immediate patching.
- 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-2026-8481?
CVE-2026-8481 is a critical code injection vulnerability in Langflow Langflow, published on 17 Jul 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 1.10.0 contain a critical remote code execution vulnerability in the code validation API endpoint. The POST /api/v1/validate/code endpoint accepts user-supplied Python code and executes it directly using Python's built-in exec() function without sandboxing, input validation, or privilege restrictions, enabling any authenticated user to execute arbitrary system commands with the full privileges of the Langflow server process.
Weakness: CWE-94
Which versions are affected by CVE-2026-8481?
It affects 1 product.
Products include Langflow Langflow.
How do I fix CVE-2026-8481?
No fix has been published for CVE-2026-8481 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-8481 being exploited?
There is no known exploitation of CVE-2026-8481 in the wild and no public exploit code.
Other vulnerabilities in Langflow Langflow
Sources
Also known as GHSA-6jrp-2cpp-fpm4.