Langflow — CraftedSignal Threat Feedhttps://feed.craftedsignal.io/products/langflow/Trending threats, MITRE ATT&CK coverage, and detection metadata — refreshed continuously.Hugoenhello@craftedsignal.iohello@craftedsignal.ioMon, 04 May 2026 10:39:06 +0000Langflow Multiple Vulnerabilities Allow Code Executionhttps://feed.craftedsignal.io/briefs/2026-05-langflow-code-exec/Mon, 04 May 2026 10:39:06 +0000hello@craftedsignal.iohttps://feed.craftedsignal.io/briefs/2026-05-langflow-code-exec/An authenticated remote attacker can exploit multiple unspecified vulnerabilities in Langflow to achieve arbitrary code execution.Langflow is vulnerable to multiple security flaws that could allow a remote attacker to execute arbitrary code on the affected system. Successful exploitation of these vulnerabilities requires the attacker to be authenticated. The specific nature of these vulnerabilities is not detailed in the advisory, however the potential impact is severe, allowing for complete system compromise if successfully exploited. Defenders should prioritize identifying and mitigating installations of Langflow that are exposed to untrusted networks or users.

Attack Chain

  1. An authenticated attacker gains initial access to the Langflow application.
  2. The attacker crafts a malicious request targeting one of the unspecified vulnerabilities.
  3. The malicious request is sent to the Langflow server.
  4. The Langflow server processes the request, triggering the vulnerability.
  5. The vulnerability allows the attacker to inject arbitrary code into the Langflow process.
  6. The injected code executes within the context of the Langflow application.
  7. The attacker leverages the initial code execution to escalate privileges.
  8. The attacker achieves arbitrary code execution on the underlying system.

Impact

Successful exploitation of these vulnerabilities allows a remote, authenticated attacker to execute arbitrary code on the Langflow server. This could lead to a complete compromise of the affected system, including the theft of sensitive data, the installation of malware, and the disruption of services. Given the lack of specific vulnerability details, it is difficult to estimate the precise number of potentially affected installations.

Recommendation

  • Monitor Langflow application logs for suspicious activity indicative of unauthorized access or code execution.
  • Deploy the Sigma rules provided in this brief to your SIEM to detect potential exploitation attempts.
  • Implement strict access controls for the Langflow application to minimize the attack surface.
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