CVE-2026-112064 TYPO3 CVE debrief

Who should care

Defenders managing Typo3 systems, particularly those with untrusted backend users, should assess exposure and implement compensating controls to limit potential data exposure. This includes reviewing backend user access controls, monitoring for suspicious database queries, and verifying if the Typo3 system is exposed. Operators of Typo3 systems, platform administrators, and security teams should review the vulnerability details and take necessary actions.

Why it matters

CVE-2026-112064 is a high-severity vulnerability in a backend module allowing arbitrary data read, including password hashes. Defenders managing Typo3 systems, especially with untrusted backend users, should verify exposure and implement compensating controls.

• Potential data exposure through arbitrary data read.
• Possible escalation of privileges through access to password hashes.
• Need for compensating controls to limit database access.
• Verification of backend user access controls required.

Technical summary

The backend module for reviewing consent history did not validate user input for sorting, grouping, and index options in a database query. This allowed a backend user with access to history or statistics functions to read arbitrary data, including password hashes of backend and frontend users. The vulnerability exists due to insufficient input validation in database queries, which could lead to data exposure. Affected systems require immediate attention to prevent potential exploitation. Defenders should prioritize verifying exposure and implementing compensating controls.

Defensive priority

Defenders should prioritize verifying exposure and implementing compensating controls, as the CVE details indicate potential for data exposure.

Recommended defensive actions

• Verify if the Typo3 system is exposed to untrusted backend users.
• Implement compensating controls to limit database access.
• Monitor for suspicious database queries.
• Review and update backend user access controls.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed.

Evidence notes

The CVE record and NVD detail page provide information on the vulnerability, including its CVSS score and potential impact. A source reference from Typo3 also provides additional context. The vulnerability allows a backend user with access to history or statistics functions to read arbitrary data, including password hashes of backend and frontend users. Evidence is limited to CVE and NVD details; further verification is needed to confirm affected systems and exposure. Defenders should verify if the Typo3 system is exposed to untrusted

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.