Unrated severityOSV Advisory· Published Jul 17, 2026· Updated Jul 18, 2026
Unauthenticated User Registration Could Lead to Remote Code Execution
CVE-2026-9202
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.
Affected products
2- Range: 1.0.0 - 1.10.0
Patches
Vulnerability mechanics
References
1- www.ibm.com/support/pages/node/7278929mitrevendor-advisorypatch
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