Vulnerability · Published Jan 23, 2026 · Assigned by zdi

CVE-2026-0771Langflow PythonFunction Code Injection Remote Code Execution Vulnerability

High 7.1

In plain English

A high-severity code injection in Langflow from Langflow. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 50% of all known vulnerabilities).

Severity (CVSS 3.0)7.1High

Exploit odds (30 days)0.6%top 49.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Langflow PythonFunction Code Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Langflow. Attack vectors and exploitability will vary depending on the configuration of the product. The specific flaw exists within the handling of Python function components. Depending upon product configuration, an attacker may be able to introduce custom Python code into a workflow. An attacker can leverage this vulnerability to execute code in the context of the application. Was ZDI-CAN-27497.

Affected products (as reported)

Vendor	Product	Versions
Langflow	Langflow	1.4.2

Weakness: CWE-94 · Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

References

ZDI-26-037 x_research-advisory