CVE-2026-8182 in Langflow OSS
Summary
by MITRE • 08/05/2026
IBM Langflow OSS 1.0.0 through 1.10.3 installations allow anyone on the internet to execute arbitrary code on the server without any credentials via 2 HTTP requests.
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Analysis
by VulDB Data Team • 08/05/2026
This vulnerability represents a critical remote code execution flaw in IBM Langflow Open Source Software versions 1.0.0 through 1.10.3 that exposes systems to unauthorized command execution over the internet. The vulnerability stems from insufficient authentication and authorization controls within the application's HTTP request handling mechanism, allowing any external attacker to bypass security measures and directly invoke arbitrary code execution capabilities on affected servers. This type of vulnerability falls under CWE-284 Access Control Issues, specifically targeting improper access control mechanisms that permit unauthorized users to perform privileged operations.
The technical exploitation involves two sequential HTTP requests that collectively enable an attacker to gain remote code execution privileges without requiring valid credentials or authentication tokens. The first request typically establishes a foothold by triggering a vulnerable code path, while the second request executes the malicious payload through the application's processing pipeline. This vulnerability demonstrates a fundamental flaw in the software's security architecture where input validation and access control checks are either absent or inadequately implemented.
The operational impact of this vulnerability is severe and potentially catastrophic for organizations relying on affected IBM Langflow installations. Attackers can leverage this vulnerability to execute arbitrary commands with the privileges of the application process, which typically runs with elevated system permissions. This could result in complete system compromise, data exfiltration, lateral movement within network environments, and potential establishment of persistent backdoors. The vulnerability affects any organization that has deployed IBM Langflow in a configuration accessible from the internet without proper network segmentation or additional security controls.
Organizations should immediately implement network-level mitigations by blocking access to affected services from external networks unless absolutely necessary, and deploying firewalls with strict ingress/egress rules to prevent unauthorized access. The most effective immediate solution involves upgrading to patched versions of IBM Langflow where available, as the vulnerability is likely addressed through proper authentication enforcement and input sanitization measures. Additionally, implementing web application firewalls and monitoring for suspicious HTTP request patterns can help detect potential exploitation attempts. According to ATT&CK framework, this vulnerability maps to T1059 Command and Scripting Interpreter, specifically targeting remote code execution capabilities that enable attackers to execute malicious commands on compromised systems through the application's HTTP interface. Organizations should also consider implementing principle of least privilege access controls and regular security assessments to identify similar vulnerabilities in other applications within their environment.