Ethical Hacking News
Langflow vulnerability exploited by threat actors, prompting organizations to take immediate action to patch their systems and protect against potential attacks.
The Langflow platform has been added to the Known Exploited Vulnerabilities (KEV) catalog by the U.S. Cybersecurity and Infrastructure Security Agency (CISA) due to a critical security flaw.A remote, unauthenticated attacker can execute arbitrary code via crafted HTTP requests on version 1.2.x of the platform.The vulnerability allows attackers to steal sensitive data or take control of the system without adequate authentication or sandboxing.There are 466 internet-exposed Langflow instances worldwide, with a majority concentrated in the United States, Germany, Singapore, India, and China.CISA has given federal civilian executive branch (FCEB) agencies until May 26, 2025, to apply fixes.
The cybersecurity landscape is constantly evolving, and vulnerabilities are emerging every day. Recently, a critical security flaw was discovered in the open-source Langflow platform, which has been added to the Known Exploited Vulnerabilities (KEV) catalog by the U.S. Cybersecurity and Infrastructure Security Agency (CISA). This article will delve into the details of this vulnerability, its impact on organizations, and what can be done to mitigate it.
The Langflow platform is a popular tool used for code validation and testing purposes. However, a recent vulnerability discovered in version 1.2.x of the platform allows remote, unauthenticated attackers to execute arbitrary code via crafted HTTP requests. This vulnerability is tracked as CVE-2025-3248 and carries a CVSS score of 9.8 out of a maximum of 10.0.
According to CISA, the Langflow platform contains a missing authentication vulnerability in the /api/v1/validate/code endpoint that allows attackers to execute arbitrary code without adequate authentication or sandboxing. This means that if an attacker can craft a malicious HTTP request and send it to the vulnerable endpoint, they can potentially execute any code on the server, including stealing sensitive data or taking control of the system.
The vulnerability was discovered by Horizon3.ai in February 2025 and has since been addressed in version 1.3.0 released on March 31, 2025. However, the fact that this vulnerability is still being exploited highlights the need for organizations to stay vigilant and take proactive measures to patch their systems.
Data from attack surface management platform Censys shows that there are 466 internet-exposed Langflow instances, with a majority of them concentrated in the United States, Germany, Singapore, India, and China. This suggests that threat actors may be targeting these locations with the vulnerability.
While it is currently not known how the vulnerability is being abused in real-world attacks, or by whom, it is essential for organizations to take immediate action to patch their systems. CISA has given federal civilian executive branch (FCEB) agencies until May 26, 2025, to apply the fixes.
The discovery of this vulnerability serves as a critical reminder for organizations to approach code-validation features with caution, particularly in applications exposed to the internet. It also highlights the importance of keeping software up-to-date and thoroughly testing systems for vulnerabilities before deploying them in production environments.
In conclusion, the Langflow vulnerability is a wake-up call for organizations to take their cybersecurity posture seriously. By patching their systems, staying vigilant, and taking proactive measures to prevent exploitation, organizations can minimize the risk of being targeted by threat actors. It is essential to stay informed about emerging vulnerabilities and to take immediate action when they are discovered.
Langflow vulnerability exploited by threat actors, prompting organizations to take immediate action to patch their systems and protect against potential attacks.
Related Information:
https://www.ethicalhackingnews.com/articles/A-Critical-Vulnerability-in-Langflow-Exploited-by-Threat-Actors-A-Wake-Up-Call-for-Organizations-ehn.shtml
https://thehackernews.com/2025/05/critical-langflow-flaw-added-to-cisa.html
https://cloudindustryreview.com/new-langflow-vulnerability-added-to-cisa-kev-list-as-exploitation-continues/
https://nvd.nist.gov/vuln/detail/CVE-2025-3248
https://www.cvedetails.com/cve/CVE-2025-3248/
Published: Tue May 6 00:46:16 2025 by llama3.2 3B Q4_K_M
