GHSA-cvh5-p6r6-g2qc is a medium-severity (CVSS 5.4) Information Exposure vulnerability in phpfastcache/phpfastcache. 1 public exploit reference exists, so weaponization risk is real. O3 Security confirms whether GHSA-cvh5-p6r6-g2qc is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Exposed phpinfo() leadked via documentation files
Real-World Exposure
phpfastcache/phpfastcache🐘phpfastcache/phpfastcache🐘phpfastcache/phpfastcacheReal-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
Impact
The phpinfo() can be exposed if the /vendor is not protected from public access. This is a rare situation today since the vendor directory is often located outside the web directory or protected via server rule (.htaccess, etc).
Patches
Only the v6, v7 and v8 will be patched respectively in 8.0.7, 7.1.2, 6.1.5. Older versions such as v5, v4 are not longer supported and will NOT be patched.
Workarounds
Protect the /vendor directory from public access.
References
The first issue revealing this vulnerability is located here: https://github.com/flextype/flextype/issues/567 V6 fix: https://github.com/PHPSocialNetwork/phpfastcache/pull/815 V7 fix: https://github.com/PHPSocialNetwork/phpfastcache/pull/814 V8 fix: https://github.com/PHPSocialNetwork/phpfastcache/pull/813
For more information
If you have any questions or comments about this advisory:
- Open an issue in our issue tracker
- Email us at [email protected]
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | phpfastcache/phpfastcache | all versions | 6.1.5 |
| 🐘Packagist | phpfastcache/phpfastcache | ≥ 7.0.0&&< 7.1.2 | 7.1.2 |
| 🐘Packagist | phpfastcache/phpfastcache | ≥ 8.0.0&&< 8.0.7 | 8.0.7 |
Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for phpfastcache/phpfastcache. 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 phpfastcache/phpfastcache to 6.1.5 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-cvh5-p6r6-g2qc 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-cvh5-p6r6-g2qc 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-cvh5-p6r6-g2qc. 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-cvh5-p6r6-g2qc in your dependencies?
O3 detects GHSA-cvh5-p6r6-g2qc across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.