Vulnerability advisory

GHSA-7852-w36x-6mf6

Laravel Encrypter Component Potential Decryption Failure Leading to Unintended Behavior

Published Updated OSV record ↗
Severity

Severity not reported.

Affected versions

AffectedFixed in
All versions before 5.5.405.5.40Advisories →
Also listed as affected (311)
5.6.0 to before 5.6.155.6.15Advisories →
Also listed as affected (15)

Description

The Laravel Encrypter component is susceptible to a vulnerability that may result in decryption failure, leading to an unexpected return of false. Exploiting this issue requires the attacker to manipulate the encrypted payload before decryption. When combined with weak type comparisons in the application's code, such as the example below:

<?php

$decyptedValue = decrypt($secret);

if ($decryptedValue == '') {
    // Code is run even though decrypted value is false...
}

References

  • Codex
  • Claude Code
  • VS Code
  • GitHub Copilot
  • Cursor
  • Cline
  • Windsurf
  • Google Anti-gravity
  • OpenCode
  • Pi
  • Gemini CLI
  • Hermes Agent
  • Zed
  • Junie
  • Qwen Code
  • Kiro
  • Kilo Code
  • Factory Droid

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