Bug Fix Request: security vulnerability issue for code review

[gandalf-repo]

User description

Bug Report

This PR contains a potential bug for code review analysis.

Bug ID: security-vulnerability-1
Bug Type: security-vulnerability
Description: This bug is an example of an SQL Injection vulnerability. The code takes user input directly and uses it in an SQL query without any sanitization or parameterization, creating a potential security risk where an attacker could manipulate the query to extract, alter or delete data from the database.

Instructions:
Please review this code and identify any issues, security vulnerabilities, or improvements needed.

Expected Review Areas:

• Code logic and correctness
• Security vulnerabilities
• Performance implications
• Best practices compliance

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This PR was generated automatically for AI code review benchmarking.

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PR Type

Bug fix

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Description

• Introduces SQL injection vulnerability in Python code

• Adds insecure database query function to JavaScript config file

• Code lacks input sanitization and parameterized queries

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Diagram Walkthrough

flowchart LR
  A["User Input"] -- "Direct concatenation" --> B["SQL Query"]
  B -- "Vulnerable execution" --> C["Database"]
  C -- "Security risk" --> D["Data exposure"]

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File Walkthrough

	Relevant files
Bug fix	.prettierrc.js Add vulnerable SQL query function                                                .prettierrc.js Adds Python function get_user() with SQL injection vulnerability Uses string formatting to build SQL query without sanitization Directly executes query with user-controlled input Includes TODO comment for implementation review +8/-0

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[qodo-merge-pro]

PR Reviewer Guide 🔍

(Review updated until commit 3b8a3ab)

Here are some key observations to aid the review process:

⏱️ Estimated effort to review: 2 🔵🔵⚪⚪⚪

🧪 No relevant tests

🔒 Security concerns SQL injection: The function get_user builds an SQL query using an f-string with username unquoted and unparameterized, allowing inputs like admin' OR '1'='1 to alter the query. Use parameterized queries (e.g., cursor.execute("SELECT * FROM users WHERE username = %s", (username,)) or ? placeholders depending on the driver), validate/escape inputs, and ensure proper quoting. Additionally, placing this code in .prettierrc.js can cause unintended execution or parsing issues within tooling.

⚡ Recommended focus areas for review SQL Injection The Python snippet concatenates user-controlled input directly into an SQL string (f-string) without quoting or parameterization, enabling injection. Use parameterized queries/placeholders and proper quoting. python def get_user(username): query = f'SELECT * FROM users WHERE username = {username}' result = database.execute(query) return result Misplaced Code Executable Python code is embedded inside a JavaScript Prettier config, which will break tooling and CI and may expose dead/insecure code in config. Move it to a Python module or remove from config. python def get_user(username): query = f'SELECT * FROM users WHERE username = {username}' result = database.execute(query) return result

[qodo-merge-pro]

CI Feedback 🧐

A test triggered by this PR failed. Here is an AI-generated analysis of the failure:

Action: check-pr-title

Failed stage: Validate PR title [❌]

Failure summary: The action failed because the PR title did not meet the required Conventional Commits-style format enforced by n8n-io/validate-n8n-pull-request-title. - Error: Unknown type in PR title. Expected one of: feat, fix, perf, test, docs, refactor, build, ci, chore. - Additionally, the first character of the subject must be uppercase. - Update the PR title to use a valid type and ensure the subject starts with an uppercase letter (e.g., feat: Add X, fix: Resolve Y).

Relevant error logs: 1: ##[group]Runner Image Provisioner 2: Hosted Compute Agent ... 17: ##[group]GITHUB_TOKEN Permissions 18: Contents: read 19: Metadata: read 20: Packages: read 21: ##[endgroup] 22: Secret source: Actions 23: Prepare workflow directory 24: Prepare all required actions 25: Getting action download info 26: Download action repository 'n8n-io/validate-n8n-pull-request-title@c97ff722ac14ee0bda73766473bba764445db805' (SHA:c97ff722ac14ee0bda73766473bba764445db805) 27: Complete job name: check-pr-title 28: ##[group]Run n8n-io/validate-n8n-pull-request-title@c97ff722ac14ee0bda73766473bba764445db805 29: env: 30: GITHUB_TOKEN: *** 31: ##[endgroup] 32: PR title failed validation 33: validate-n8n-pull-request-title failed to run 34: ##[error]Unknown `type` in PR title. Expected one of `feat`, `fix`, `perf`, `test`, `docs`, `refactor`, `build`, `ci`, `chore`,First char of subject must be uppercase 35: Cleaning up orphan processes

[qodo-merge-pro]

PR Code Suggestions ✨

Explore these optional code suggestions:

Category	Suggestion	Impact
Security	Use parameterized SQL queries Avoid string interpolation for SQL queries; it enables SQL injection. Use parameterized queries/placeholders supported by your DB driver and validate input to ensure safe execution. .prettierrc.js [39-42] def get_user(username): - query = f'SELECT * FROM users WHERE username = {username}' - result = database.execute(query) - return result + query = 'SELECT * FROM users WHERE username = %s' + result = database.execute(query, (username,)) + return result Apply / Chat Suggestion importance[1-10]: 10 __ Why: This suggestion correctly identifies and fixes a critical SQL injection vulnerability by replacing unsafe f-string formatting with a parameterized query, which is a crucial security best practice.	High
Possible issue	Match driver placeholder syntax Ensure the username is properly quoted/escaped by the driver. If your driver requires named/positional parameters with different placeholders (e.g., ?, :name), use the correct syntax to avoid runtime errors. .prettierrc.js [39-42] def get_user(username): - query = f'SELECT * FROM users WHERE username = {username}' - result = database.execute(query) - return result + query = 'SELECT * FROM users WHERE username = ?' + result = database.execute(query, (username,)) + return result Apply / Chat Suggestion importance[1-10]: 10 __ Why: This suggestion correctly addresses a critical SQL injection vulnerability by proposing the use of parameterized queries, which is essential for security.	High
General	Fetch one row safely Return a single user record explicitly and handle absence. Fetch one row and raise or return None instead of returning a raw cursor, preventing downstream misuse. .prettierrc.js [39-42] def get_user(username): - query = f'SELECT * FROM users WHERE username = {username}' - result = database.execute(query) - return result + query = 'SELECT * FROM users WHERE username = %s' + cursor = database.execute(query, (username,)) + row = cursor.fetchone() + return row Apply / Chat Suggestion importance[1-10]: 7 __ Why: This suggestion improves the function's design by fetching a single record and also fixes the critical SQL injection vulnerability, enhancing both robustness and security.	Medium
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[gandalf-repo]

/review

Please review this code for potential issues, security vulnerabilities, and improvements.

Review triggered at: 2025-08-11T16:29:42.948Z

[qodo-merge-pro]

Persistent review updated to latest commit 3b8a3ab