High severity · published Aug 25, 2026
CVE-2026-56095
Insecure Deserialization in extension "Apache Solr for TYPO3 - Enterprise Search" (solr)
7.7
CVSS
0.3%
EPSS
No
On KEV
Description
The extension's indexer passed every field value returned by content object rendering through PHP's unserialize() function when transferring multi-value data for the SOLR_CLASSIFICATION, SOLR_MULTIVALUE and SOLR_RELATION content object types, rather than a safe format. If user-generated content saved in the TYPO3 database can reach an indexed field, this exposes a PHP Object Injection surface.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 25% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EA
Extension "Apache Solr for TYPO3 - Enterprise Search" · TYPO3
13.0.0 before 13.1.4; 12.0.0 before 12.1.4; 11.5.0 before 11.6.6 · source: vendor
Affected product
EA
Extension "Apache Solr for TYPO3 - Enterprise Search"
TYPO3
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-56095
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-56095
typo3.org
https://typo3.org/security/advisory/typo3-ext-sa-2026-025
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Broken Access Control in extension "Apache Solr for TYPO3 - Enterprise Search" (solr)
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CVE-2026-56094
Information Disclosure in extension "Apache Solr for TYPO3 - Enterprise Search" (solr)
6.3
CVE-2026-56096
Information Disclosure in extension "Apache Solr for TYPO3 - Enterprise Search" (solr)