GHSA-6mjq-9x4w-m3w9
GHSA-6mjq-9x4w-m3w9 is a security vulnerability in friendsofsymfony/user-bundle. O3 Security confirms whether GHSA-6mjq-9x4w-m3w9 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
FOSUserBundle Session Hijacking Vulnerability
Blast Radius
friendsofsymfony/user-bundleReal-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
Versions of FOSUserBundle from 1.2.x to 1.2.4 have been found to contain a security vulnerability related to session hijacking. This issue has been addressed in version 1.2.4, and users are strongly advised to upgrade to the latest version to prevent potential session-related security risks.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | friendsofsymfony/user-bundle | ≥ 1.2.0&&< 1.2.4 | 1.2.4 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for friendsofsymfony/user-bundle. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update friendsofsymfony/user-bundle to 1.2.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-6mjq-9x4w-m3w9 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 pinpoints whether GHSA-6mjq-9x4w-m3w9 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to GHSA-6mjq-9x4w-m3w9. 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-6mjq-9x4w-m3w9 in your dependencies?
O3 detects GHSA-6mjq-9x4w-m3w9 across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.