22 July 2026
Reference: CVE-2026-0770
1. What is being reported?
The vulnerability involves Langflow’s handling of a specific input called exec_globals. Because Langflow does not properly check this input, attackers can remotely run any code they want on the system where Langflow is installed. This can happen without any authentication, meaning no password or login is required.
2. What this means in plain English
If your organisation uses Langflow, attackers could take over your system completely, potentially accessing or damaging your data and systems. This is a high-risk issue because it can be exploited remotely and easily. Even small organisations using this software could be at risk.
3. Could this affect a small business?
Small businesses or charities using Langflow software, especially if it is accessible over the internet, are at risk. Those not using Langflow or similar AI tools from this vendor are unlikely to be affected. If you are unsure whether you use this product, check with your IT provider.
4. What to do now
- Contact your IT provider or software supplier immediately to confirm if you use Langflow and if your version is affected.
- Apply any security updates or patches provided by Langflow as soon as possible following vendor instructions.
- If no patch is available, follow recommended mitigations or consider discontinuing use of Langflow until it is safe.
- Review your systems’ exposure to the internet and restrict access to Langflow installations to trusted users only.
5. Ask your IT provider
Can you confirm whether our systems use Langflow software and if so, have all necessary security updates or mitigations for CVE-2026-0770 been applied?
6. Bottom line
If you use Langflow, act quickly to secure your systems against this critical remote code execution vulnerability.
Information based on CISA KEV, NVD, and reputable security reporting.