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Back to active CVEs
High · CVSS 7.7CVE-2026-56095

Insecure Deserialization in extension "Apache Solr for TYPO3 - Enterprise Search" (solr)CVE-2026-56095

Answer in brief

CVE-2026-56095 records a High severity (CVSS 7.7) vulnerability in Insecure Deserialization in extension "Apache Solr for TYPO3 - Enterprise Search" (solr). The current sources do not mark it as known exploited. The current feed maps TYPO3/apache-solr-for-typo3/solr (generic), TYPO3/Extension "Apache Solr for TYPO3 - Enterprise Search" (generic), TYPO3/Extension "Apache Solr for TYPO3 - Enterprise Search" (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 25, 2026Updated Sep 17, 2026Source checked Oct 9, 2026First seen by HOL Aug 25, 2026Material review Sep 17, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 7.7
Exploitation
Not marked as known exploited
Affected software
3 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 7.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps TYPO3/apache-solr-for-typo3/solr (generic), TYPO3/Extension "Apache Solr for TYPO3 - Enterprise Search" (generic), TYPO3/Extension "Apache Solr for TYPO3 - Enterprise Search" (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
TYPO3/apache-solr-for-typo3/solrgeneric>=13.0.0 <13.1.4 || >=12.0.0 <12.1.4 || >=11.5.0 <11.6.613.1.4, 12.1.4, 11.6.6
TYPO3/Extension "Apache Solr for TYPO3 - Enterprise Search"generic>=13.0.0 <13.1.4 || >=12.0.0 <12.1.4 || >=0 <11.6.613.1.4, 12.1.4, 11.6.6
TYPO3/Extension "Apache Solr for TYPO3 - Enterprise Search"generic>=13.0.0 <13.1.4 || >=12.0.0 <12.1.4 || >=11.5.0 <11.6.613.1.4, 12.1.4, 11.6.6

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for TYPO3/apache-solr-for-typo3/solr, TYPO3/Extension "Apache Solr for TYPO3 - Enterprise Search", TYPO3/Extension "Apache Solr for TYPO3 - Enterprise Search".
  2. 2Review the reported fix. Update TYPO3/apache-solr-for-typo3/solr to 13.1.4; TYPO3/Extension "Apache Solr for TYPO3 - Enterprise Search" to 13.1.4; TYPO3/Extension "Apache Solr for TYPO3 - Enterprise Search" to 13.1.4 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Aug 25, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Sep 17, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Aug 25, 2026

Sources and claim methodology

  • Source referencetypo3.org
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • WordPress Quiz And Survey Master plugin <= 11.2.7 - PHP Object Injection vulnerabilityAlso CWE-502
  • WordPress Product Configurator for WooCommerce plugin <= 1.7.5 - PHP Object Injection vulnerabilityAlso CWE-502
  • Apache CXF: XML Signature wrapping in JAX-RS XML SecuritySame generic ecosystem
  • Super Payments < 1.43.1 - Unauthenticated Payment Confirmation Forgery via Webhook SignatureSame generic ecosystem
  • Apache Camel Karavan: project file name path traversal when committing a project to GitSame generic ecosystem
  • Apache Camel Karavan: unvalidated Kubernetes resources applied from a project's kubernetes.yamlSame generic ecosystem

Record context

Vulnerability class
Deserialization
EPSS
Not reported
CWE IDs
CWE-502
Source
CVE List V5
Source checked
Oct 9, 2026
References
1 linked source
Open source record