# CVE-2026-56094

## Summary

- **CVE ID:** CVE-2026-56094
- **Severity:** MEDIUM
- **CVSS Score:** 6.3 (CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N)
- **CWE:** CWE-943
- **Published:** Aug 25, 2026
- **Last Modified:** Aug 25, 2026

## Description

The extension allows a request-provided additionalFilters parameter to register a named siteHash filter before the system's own siteHash filter is applied, and the query builder does not overwrite an already-registered named filter. In a shared Solr core serving multiple TYPO3 sites, a visitor can use this to read public documents belonging to another site. The same root cause also affects the suggest top-results path when suggest is enabled.

## Affected Products

- TYPO3 — Extension "Apache Solr for TYPO3 - Enterprise Search" (13.0.0)
- TYPO3 — Extension "Apache Solr for TYPO3 - Enterprise Search" (12.0.0)
- TYPO3 — Extension "Apache Solr for TYPO3 - Enterprise Search" (0)

## References

- [CNA](https://typo3.org/security/advisory/typo3-ext-sa-2026-025)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.26%
- **EPSS Percentile:** 17.1

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._