CVE-2026-12822 langflow-ai langflow Bundle URL Loader code injection

Medium 4.8 Published Updated

A local attacker can execute arbitrary code via the Bundle URL Loader in Langflow, posing a significant security risk to the application environment.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-12822?

CVE-2026-12822 is a medium-severity code injection vulnerability in Langflow Langflow, published on 21 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability was identified in langflow-ai langflow up to 1.9.3. This affects an unknown function of the component Bundle URL Loader. The manipulation leads to code injection. The attack needs to be performed locally. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-94, CWE-74

Which versions are affected by CVE-2026-12822?

It affects 1 product.

Products include Langflow Langflow.

How do I fix CVE-2026-12822?

No fix has been published for CVE-2026-12822 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-2026-12822 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-12822 exists.

All Langflow Langflow vulnerabilities

Sources

Also known as GHSA-fxq6-8jqq-rh9v.

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