Unrated severityNVD Advisory· Published Jun 22, 2026
Unauthenticated Remote Code Execution in Langflow OSS PythonREPLComponent via Builtins Injection
CVE-2026-10561
Description
IBM Langflow OSS 1.0.0 through 1.9.3 has an vulnerability due to an improper isolation of Python execution combined with an authentication bypass that allows an unauthenticated attacker to execute arbitrary code on the host system, resulting in complete compromise
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Affected products
1- Range: >=1.0.0, <=1.9.3
Patches
Vulnerability mechanics
No source-code context for this CVE — mechanics is only generated when we can read the actual fix diff. Without that, the four sections (root cause, attack vector, affected code, fix) would be speculation rather than analysis.
References
1- www.ibm.com/support/pages/node/7277242mitrevendor-advisorypatch
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