CVE-2026-9202 Unauthenticated User Registration Could Lead to Remote Code Execution
Unauthenticated attackers can create active accounts in IBM Langflow OSS to reach RCE endpoints when a specific deployment option is enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-9202?
CVE-2026-9202 is a critical authentication bypass vulnerability in Langflow Langflow, published on 17 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
IBM Langflow OSS 1.0.0 through 1.10.0 allows unauthenticated attackers to create unlimited user accounts on any Langflow instance; when NEW_USER_IS_ACTIVE=true (documented deployment option), newly created accounts are immediately active and can authenticate to reach RCE endpoints, bypassing the need for AUTO_LOGIN.
Weakness: CWE-306
Which versions are affected by CVE-2026-9202?
It affects 1 product.
Products include Langflow Langflow.
How do I fix CVE-2026-9202?
No fix has been published for CVE-2026-9202 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-9202 being exploited?
There is no known exploitation of CVE-2026-9202 in the wild and no public exploit code.
Other vulnerabilities in Langflow Langflow
Sources
Also known as GHSA-f8j5-5w75-w786.