Information Disclosure in TYPO3 CMSGHSA-c7p6-3c9c-f88q
LOWGHSA-c7p6-3c9c-f88q is a low-severity (CVSS 3.7) vulnerability in typo3/cms. A fix is available for typo3/cms — see the affected versions and patch details below.
Real-World Exposure
typo3/cms🐘typo3/cmsReal-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
HTTP requests being performed using the TYPO3 API expose the specific TYPO3 version to the called endpoint.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | typo3/cms | ≥ 7.6.0&&< 7.6.22 | 7.6.22composer require typo3/cms:^7.6.22 |
| 🐘Packagist | typo3/cms | ≥ 8.0.0&&< 8.7.5 | 8.7.5composer require typo3/cms:^8.7.5 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for typo3/cms, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update typo3/cms to 7.6.22 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-c7p6-3c9c-f88q 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.
Frequently Asked Questions
Is GHSA-c7p6-3c9c-f88q in your dependencies?
Find it across Packagist, including transitive dependencies.