---
id: GHSA-qqw9-2vj9-hx7r
title: >-
  Duplicate Advisory: Title Authenticated Remote Code Execution in validate_code
  via Malicious Decorators Description
summary: >-
  Duplicate Advisory: Title Authenticated Remote Code Execution in validate_code
  via Malicious Decorators Description
severity: high
vendor: langflow
product: langflow
ecosystem: pip
affected:
  - 'langflow >= 1.7.2, < 1.10.1'
published: '2026-10-02'
updated: '2026-10-05'
sourceUpdated: '2026-10-05T22:30:53Z'
source: GHSA
sourceUrl: 'https://github.com/advisories/GHSA-qqw9-2vj9-hx7r'
references:
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-51886'
  - url: 'https://github.com/langflow-ai/langflow/issues/13336'
  - url: 'https://gist.github.com/Ro1ME/c11b1e63e4e8fca6b25275144f25ec2a'
  - url: 'https://github.com/advisories/GHSA-qqw9-2vj9-hx7r'
tags:
  - ghsa
  - pip
ingestedAt: '2026-10-05T22:35:24.746Z'
---

## Overview

## Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-w584-2h2r-2hvf. This link is maintained to preserve external references.

## Original Description
langflow-ai langflow v1.9.3 is affected by: Code Injection. The impact is: execute arbitrary code (remote). The component is: src/backend/base/langflow/api/v1/validate.py:validate-post_validate_code-a-real-authenticated-http-post-to-api-v1. The attack vector is: Attack surface: HTTP or browser-backed service path. A public-facing route accepts raw Python source and forwards it into a server-side compile/exec validation path without any visible entitlement guard. ¶¶ A weakness has been identified in langflow-ai langflow up to 1.9.3. langflow contains a code injection vulnerability in validate-post_validate_code-a-real-authenticated-http-post-to-api-v1 (src/backend/base/langflow/api/v1/validate.py:13). An authenticated attacker can execute arbitrary Python code on the server by submitting malicious code to the /api/v1/validate/code endpoint, which directly executes user-supplied code without sandboxing or security controls.

## Affected packages

- `langflow >= 1.7.2, < 1.10.1`

## Remediation

Refer to the advisory for the patched release.