CVE-2026-56094
Received Received - Intake

Path Traversal in TYPO3 Solr Extension

Publication date: 2026-08-25

Last updated on: 2026-08-25

Assigner: TYPO3

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.

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Meta Information

Published
2026-08-25
Last Modified
2026-08-25
Generated
2026-08-25
AI Q&A
2026-08-25
EPSS Evaluated
N/A
NVD
CVE-2026-56094
EUVD
EUVD-2026-65351

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
typo3 typo3 *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-943 The product generates a query intended to access or manipulate data in a data store such as a database, but it does not neutralize or incorrectly neutralizes special elements that can modify the intended logic of the query.

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Executive Summary

This vulnerability allows a visitor to manipulate a Solr core shared by multiple TYPO3 sites by registering a named siteHash filter before the system's own filter is applied. The query builder does not overwrite existing named filters, enabling unauthorized access to documents belonging to another site.

Impact Analysis

If you use a shared Solr core for multiple TYPO3 sites, an attacker could exploit this to read public documents belonging to another site hosted on the same core. This could lead to unauthorized data exposure or information leakage.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, potentially violating GDPR's data protection principles or HIPAA's confidentiality requirements. Organizations may face compliance breaches if user data is exposed.

Mitigation Strategies

Update TYPO3 to the latest version that patches this vulnerability. Review Solr core configurations to ensure proper filter registration and query building. Disable the suggest top-results path if not required.

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