What is CVE-2026-0769?

CVE-2026-0769 is a critical-severity vulnerability in Langflow, classified under Eval Injection. CVSS score: 9.8/10. Published 2026-01-23.

How severe is CVE-2026-0769?

Critical severity. CVSS v3 base score is 9.8 out of 10.

RCE in Langflow

CVE-2026-0769

Langflow eval_custom_component_code Eval Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Langflow. Authentication is not required to exploit this vulnerability. The specific flaw exists within the implementation of eval_custom_component_code function. The issue results from the lack of proper validation of a user-supplied string before using it to execute python code. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-26972.

EPSS: 0.338 (98.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Langflow — versions 1.3.2

Weakness classification (CWE)

CWE-95 — Eval Injection

References

zdi-disclosures@trendmicro.com (x_research-advisory, Third Party Advisory)

Frequently asked questions

What is CVE-2026-0769?: CVE-2026-0769 is a critical-severity vulnerability in Langflow, classified under Eval Injection. CVSS score: 9.8/10. Published 2026-01-23.
How severe is CVE-2026-0769?: Critical severity. CVSS v3 base score is 9.8 out of 10.