CVE-2026-101861 (GCVE-0-2026-101861)

Vulnerability from cvelistv5 – Published: 2026-09-28 15:49 – Updated: 2026-09-28 15:49 X_Open Source
VLAI
Title
Langflow Code Execution via eval() in Component Input Schema
Summary
Langflow 1.0.16 before 1.12.0 and 0.0.94 before 1.12.0 contain an unsafe eval() vulnerability in schema.py that allows authenticated attackers to achieve code execution by placing a Python object with a malicious __repr__ method into component input options lists. The eval() sink is triggered when a component is converted into a LangChain tool via ComponentToolkit.get_tools(), including during custom component saves through the API, by interpolating options into a Literal type string that is passed directly to eval() without safe evaluation controls.
Severity
2.1 (Low)
CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
4.1 (Medium)
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L
CWE
  • CWE-95 - Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')
  • CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
Impacted products
Vendor Product Version CPE status
langflow-ai langflow Affected: 1.0.16 , < 1.12.0 (semver)
Affected: 0.0.94 , < 1.12.0 (semver)
guessed Create a notification for this product.
Date Public
2026-09-28 00:00
Credits
Weblover VulnCheck
Show details on NVD website
To clipboard 

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