CVE-2026-0771 — HIGH (7.1) — White Hats Nepal

Vulnerability 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.

CVSS Score

7.1

HIGH

CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Langflow	Langflow	1.4.2

Related Weaknesses (CWE)

CWE-94

References

https://www.zerodayinitiative.com/advisories/ZDI-26-037/Third Party Advisory

FAQ

What is CVE-2026-0771?

CVE-2026-0771 is a vulnerability with a CVSS score of 7.1 (HIGH). Langflow PythonFunction Code Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Langflow. Attack vectors a...

How severe is CVE-2026-0771?

CVE-2026-0771 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-0771?

Check the references section above for vendor advisories and patch information. Affected products include: Langflow Langflow.