Laravel Encrypter Component Potential Decryption Failure Leading to Unintended Behavior
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...
}Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | laravel/framework | < 5.5.40, >= 5.6.0, < 5.6.15 | 5.5.40, 5.6.15 |
References
- https://github.com/laravel/framework/commit/28e53f23a76206fb130e9a54eb95aa3f010e79c9
- https://github.com/laravel/framework/commit/886d261df0854426b4662b7ed5db6a1c575a4279
- https://github.com/FriendsOfPHP/security-advisories/blob/master/laravel/framework/2018-03-30-1.yaml
- https://github.com/laravel/framework
- https://medium.com/@taylorotwell/laravel-security-release-5-6-15-and-5-5-40-56f1257933a0
- Weakness (CWE)
CWE-1240- Platform
- Composer
- Package
laravel/framework- Disclosed
- 15.05.2024
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-7852-w36x-6mf6 - CC BY 4.0
Vulnerability history: laravel/framework
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 26
- First → latest
- 01.2021 09.2026
- Without a fix
- 0
- Exploited in attacks
- 1
Severity breakdown
- Critical 2
- High 11
- Medium 12
- Low 1
Disclosures per year
- 2021: 5
- 2022: 5
- 2023: 0
- 2024: 10
- 2025: 3
- 2026: 3
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Laravel Encrypter Component Potential Decryption Failure Leading to Unintended Behavior this entry
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