GHSA-cvm2-5f78-g9m8
GHSA-cvm2-5f78-g9m8 is a CWE-209 vulnerability in typo3/cms-core. O3 Security confirms whether GHSA-cvm2-5f78-g9m8 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
TYPO3 CMS exposes sensitive information in an error message
Blast Radius
typo3/cms-core🐘typo3/cms-core🐘typo3/cms-core🐘typo3/cms-core🐘typo3/cms-coreReal-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
Error messages containing sensitive information in the File Abstraction Layer in TYPO3 CMS versions 9.0.0-9.5.54, 10.0.0-10.4.53, 11.0.0-11.5.47, 12.0.0-12.4.36, and 13.0.0-13.4.17 allow backend users to disclose full file paths via failed low-level file-system operations.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | typo3/cms-core | ≥ 9.0.0&&< 12.4.37 | 12.4.37 |
| 🐘Packagist | typo3/cms-core | ≥ 10.0.0&&< 12.4.37 | 12.4.37 |
| 🐘Packagist | typo3/cms-core | ≥ 11.0.0&&< 12.4.37 | 12.4.37 |
| 🐘Packagist | typo3/cms-core | ≥ 12.0.0&&< 12.4.37 | 12.4.37 |
| 🐘Packagist | typo3/cms-core | ≥ 13.0.0&&< 13.4.18 | 13.4.18 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for typo3/cms-core. 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 typo3/cms-core to 12.4.37 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-cvm2-5f78-g9m8 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-cvm2-5f78-g9m8 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-cvm2-5f78-g9m8. 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-cvm2-5f78-g9m8 in your dependencies?
O3 detects GHSA-cvm2-5f78-g9m8 across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.