Langflow eval_custom_component_code Eval Injection Remote Code Execution Vulnerability

Description

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.

Scores

EPSS (exploitation in 30 days)

41.2% · top 1.3% of all CVEs (6 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: yes · Technical impact: total

The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.

Weakness

• CWE-95: Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection') (opens in a new tab)All about CWE-95 and its CVEs

Affected products

• Langflow · Langflow

  • affected 1.3.2

References (1)

• ZDI-26-035 (opens in a new tab)x_research-advisory

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2026-0769](https://trackcve.app/badge/CVE-2026-0769.svg)](https://trackcve.app/cve/CVE-2026-0769)

Record last updated 26 Feb 2026, 14:44 UTC.