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Cyber Security Agency of Singapore
Alerts

Critical Vulnerability in Langflow

24 July 2026

Attackers are exploiting a critical severity vulnerability in Langflow to execute arbitrary code. Users and administrators of affected products are advised to apply the latest security updates immediately.

Background

Security updates have been released to address a critical vulnerability (CVE-2026-0770) affecting Langflow. Langflow is an open source low-code tool for building Al agents and other Al applications. This vulnerability has a Common Vulnerability Scoring System (CVSS v3.1) score of 9.8 out of 10.

Impact

Successful exploitation of the remote code execution vulnerability could allow an unauthenticated attacker to remotely execute arbitrary code on affected installations of Langflow.

Known Exploitation

This vulnerability is reportedly under active exploitation.

Affected Products

This vulnerability affects Langflow versions 1.7.3 and earlier.

Recommendations

Users and administrators of affected products are advised to update to the latest versions immediately. 

References

https://nvd.nist.gov/vuln/detail/cve-2026-0770

https://www.zerodayinitiative.com/advisories/ZDI-26-036/

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