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Fencer Vulns
critical 9.8

CVE-2026-0769 in the critical feed json

Langflow eval_custom_component_code Eval Injection Remote Code Execution Vulnerability

published 2026-01-23 9 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-4475

cvss
9.8
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
41.2%
EPSS 41.2% chance of exploitation in 30 days, percentile 98%
public exploits
1
Metasploit

Summary

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.

Timeline

  1. First public exploit (Metasploit exploit/multi/http/langflow_unauth_rce_cve_2026_0769)
  2. Published

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
9 mo ago

Exploit prediction

41.15% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

CVSS scores

assigned by version score vector
CNA 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Langflow Langflow

Classification

Weakness
  • CWE-95 Improper Neutralization of Directives in Dynamically Evaluated Code

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.