GHSA-7852-w36x-6mf6 — laravel/framework
Fix: laravel/framework@28e53f2GHSA-7852-w36x-6mf6 is a security vulnerability in laravel/framework. A fix is available for laravel/framework — see the affected versions and patch details below.
Laravel Encrypter Component Potential Decryption Failure Leading to Unintended Behavior
Real-World Exposure
laravel/framework🐘laravel/frameworkReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.
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...
}
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | laravel/framework | all versions | 5.5.40composer require laravel/framework:^5.5.40 |
| 🐘Packagist | laravel/framework | ≥ 5.6.0&&< 5.6.15 | 5.6.15composer require laravel/framework:^5.6.15 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for laravel/framework, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update laravel/framework to 5.5.40 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-7852-w36x-6mf6 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-7852-w36x-6mf6 can be triaged on real exposure rather than presence alone.
Tailored to GHSA-7852-w36x-6mf6. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-7852-w36x-6mf6 in your dependencies?
O3 Security finds GHSA-7852-w36x-6mf6 across Packagist dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.