TYPO3 CMS - Broken Access Control in Backend and Install Tool
High-risk advisory
CVE-2026-19418
Summary
TYPO3 CMS - Broken Access Control in Backend and Install Tool
Why it matters
GitHub has published a reviewed security advisory for typo3/cms-backend. Prioritize it with other application dependency updates, especially because EPSS places it in the 11% percentile.
Operator check
Check whether typo3/cms-backend is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. CVSS score: 7.3. EPSS probability: 0.2%; percentile: 11%.
Sources
PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.