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.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56094.json",
"cwe_ids": [
"CWE-943"
],
"cna_assigner": "TYPO3"
}{
"source": "AFFECTED_FIELD",
"extracted_events": [
{
"introduced": "13.0.0"
},
{
"fixed": "13.1.4"
},
{
"introduced": "12.0.0"
},
{
"fixed": "12.1.4"
},
{
"introduced": "0"
},
{
"fixed": "11.6.6"
}
]
}