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Pensar - auto fix for Sensitive Error Message Exposure in Vercel Deployment Status Check #15

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@pensarapp pensarapp bot commented Apr 1, 2025

Secured with Pensar

Fixed an information disclosure vulnerability (CWE-209) in the getRunningDeployment function where raw error messages were being directly exposed to users through toast.error(String(error)). This could potentially reveal sensitive information such as authentication tokens, team IDs, or internal system configurations.

The fix:

  1. Added error logging to the console for debugging purposes with console.error("Deployment status fetch error:", error)
  2. Replaced the raw error message with a generic user-friendly message: toast.error("Unable to fetch deployment status. Please try again later.")

This change ensures that sensitive information from error messages is not exposed to end users while still preserving error logging for debugging purposes. The generic error message provides enough information for users to understand that something went wrong without revealing implementation details.

More Details
Type Identifier Message Severity Link
Application CWE-209 The code in getRunningDeployment (lines 75-92) catches errors and displays the error message directly via toast.error. This practice can lead to exposure of sensitive internal information to the user (or an attacker) if the error messages contain sensitive details regarding the system's configuration (e.g., missing tokens or team IDs). This information might help an attacker to understand the internal workings of the deployment flow. Although the messages are somewhat generic, using direct error messages without sanitization can be considered an information disclosure vulnerability (CWE-209). medium Link

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vercel bot commented Apr 1, 2025

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