CVE-2026-10561: critical vulnerability in IBM Langflow OSS
Unauthenticated Remote Code Execution in Langflow OSS PythonREPLComponent via Builtins Injection
Published · Updated
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 10epss 0.8%
exploitation probability
0.8%top 44% of all CVEs
observed exploitation
nono source reports it
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
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Affected products
IBM · Langflow OSSRelated CVEs — IBM Langflow OSS
In the same product, most dangerous first.
CVE-2026-9198CRITICALUnauthenticated Remote Code Execution via Auto-Login Bypass and Code ValidationEPSS 28.7%KEVCVE-2026-9103CRITICALUnauthenticated Superuser Token Issuance via Auto-Login EndpointEPSS 3.2%CVE-2026-19295CRITICALLangflow is affected by multiple remote code execution vulnerabilities due to insufficient code-execution policy enforcementEPSS 3.0%CVE-2026-18729HIGHLangflow is affected by multiple remote code execution vulnerabilities due to insufficient code-execution policy enforcementEPSS 1.8%CVE-2026-8476CRITICALDisk Cache Deserialization Remote Code Execution VulnerabilityEPSS 1.0%CVE-2026-12940CRITICALLangflow is affected by remote code execution due to multiple unauthenticated and insufficiently authorized API endpointsEPSS 0.9%