CVE-2026-56095
Published:August 25, 2026
Updated:September 24, 2026
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.
Affected Packages
apache-solr-for-typo3/solr (PHP):
Affected version(s) >=3.1.0 <11.6.6Fix Suggestion:
Update to version 11.6.6apache-solr-for-typo3/solr (PHP):
Affected version(s) >=12.0.0 <12.1.4Fix Suggestion:
Update to version 12.1.4apache-solr-for-typo3/solr (PHP):
Affected version(s) >=13.0.0 <13.1.4Fix Suggestion:
Update to version 13.1.4Related Resources (5)
Do you need more information?
Contact UsCVSS v4
Base Score:
7.7
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
PRESENT
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Deserialization of Untrusted Data
EPSS
Base Score:
0.25