Patchfirst
CVE-2026-0769 Public exploit Critical · 9.8 EPSS 41.2%

Langflow eval_custom_component_code Eval Injection Remote Code Execution Vulnerability

Langflow · Langflow

Summary

The flaw is an eval injection in the eval_custom_component_code function of Langflow, where a user-supplied string is executed as Python code without proper validation. An remote attacker who can reach an affected Langflow installation can execute arbitrary code in the context of the running process, and no authentication or user interaction is required.

Official description · CVE.org

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.

Breakdown
73.2 / 100
Exploited
Yes, in VulnCheck KEV
Reports
0
Tactics
0/15

First seen exploited 7 months after disclosure. Public exploit code (Metasploit) was available 1 day before disclosure.

  1. Public exploit codeMetasploit1 day before
  2. Disclosedday 0
  3. First seen exploitedVulnCheck KEV evidence+7 mo

techniques

No techniques linked

No ATT&CK techniques are linked to this CVE yet. MITRE CTID has not mapped it, and no report passage in the corpus ties it to a technique.

What security researchers reported

Not named in any threat report yet

Also mentioned in 4 community threat pulses (AlienVault OTX)

Weaker evidence

Pulses are indicator collections that anyone can publish. A mention is not confirmation of exploitation.

References

1 link, grouped by NVD tag
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