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critical·Product Based Web Vulnerabilities·Updated Jul 28, 2026

CVE-2026-9198 Scanner

CVE-2026-9198 Scanner - Remote Code Execution vulnerability in IBM Langflow

Est. Time~10 seconds
Scan TypeGroup Scan
Targetsdomain, subdomain, ipv4
CostFree
3k
Times Used
continuous scan runs
3.4k
Continuously Checked
assets under CS
0
Vulnerabilities Found
confirmed findings
References
🔴
CISA Known Exploited Vulnerability
This CVE is actively exploited in the wild. CISA mandates federal agencies to patch immediately.
CVECVE-2026-9198
9.8
CVSScritical
Exploitable remotely over the internet · no authentication required.

IBM Langflow OSS 1.0.0 through 1.10.0 allows unauthenticated attackers to chain /api/v1/auto_login (mints SUPERUSER tokens to any network caller) with /api/v1/validate/code (executes user code via exec()) to achieve full RCE on default Langflow deployments

Attack Vector
Network
Privileges Req.
None
User Interaction
None
Affected
Langflow OSSby IBM
1.0.0
Updated Aug 19, 2026View on NVD →
Detail

IBM Langflow is an open-source software employed by various organizations for data processing and analytics purposes. It offers a platform for automating workflows and integrating diverse data systems. Businesses utilize Langflow for enhancing their data management capabilities, facilitating complex data flows, and streamlining operations. This software is frequently deployed in enterprises and data-driven environments where system efficiency and functionality are critical. IT teams often rely on Langflow for seamless data integration and processing. The software's ease of use and comprehensive feature set make it a popular choice among data engineers and analysts.

The Remote Code Execution (RCE) vulnerability in IBM Langflow is a critical security flaw allowing unauthenticated attackers to execute arbitrary code remotely. This vulnerability arises from inadequacies in the endpoint authentication process. Unauthenticated users can exploit this vulnerability by chaining specific API endpoints. It allows malicious actors to bypass normal authentication procedures and gain unauthorized access. This security issue is particularly severe as it can lead to a complete compromise of the affected system. The vulnerability poses a significant risk to data integrity and system security.

The technical details of this vulnerability involve chaining the /api/v1/auto_login and /api/v1/validate/code endpoints. These endpoints can be manipulated by attackers to bypass authentication and execute code. The exploit is facilitated by weaknesses in the endpoint validation process. Attackers can generate access tokens through these endpoints and use them for code execution. The crafted HTTP requests can manipulate the API to run arbitrary commands. This vulnerability demonstrates the importance of robust authentication mechanisms.

When exploited, this vulnerability can lead to severe consequences such as unauthorized access, data breaches, and system disruptions. The attackers can potentially take full control over the affected system. Such actions can lead to the leakage of sensitive information and the alteration of critical data. The exploitation could result in downtime or performance degradation of the compromised system. Unauthorized code execution can introduce malware or cause other malicious activities. Overall, the vulnerability puts the organization's information security at high risk.

REFERENCES

Solution Advice
Remediation:
  • Update IBM Langflow to the latest version beyond 1.10.0 to patch the vulnerability.
  • Implement strict authentication checks for API endpoints to prevent unauthorized access.
  • Conduct regular security audits and vulnerability assessments on the system.
  • Monitor system logs for any unauthorized access attempts or suspicious activities.
  • Restrict API access based on IP addresses and configure proper firewall rules.
  • Ensure proper exception handling to avoid exposing sensitive information in error messages.

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CVE-2026-9198 Scanner - Remote Code Execution vulnerability in IBM Langflow S4E