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CVE-2026-56094— Information Disclosure in extension "Apache Solr for TYPO3 - Enterprise Search" (solr)

Quick assessment

Affected
TYPO3 Extension "Apache Solr for TYPO3 - Enterprise Search"
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

该扩展允许使用请求提供的 additionalFilters 参数，在系统自身的 siteHash 过滤器生效之前注册一个名为 siteHash 的自定义过滤器，而查询构建器（query builder）不会覆盖已注册的具名过滤器。在共享 Solr 核心（core）且同时为多个 TYPO3 站点提供服务的环境下，攻击者可以利用此漏洞读取属于其他站点的公开文档。相同的根本原因还会影响当启用 suggest 功能时的 suggest 顶部结果查询路径。

CVSS 6.3 · Medium EPSS 0.26% · P17

Possible ATT&CK Techniques 1 AI

T1115 · Clipboard Data

Affected Version Matrix 3

VendorProduct Version RangeStatus
TYPO3 Extension "Apache Solr for TYPO3 - Enterprise Search" 13.0.0< 13.1.4 affected
12.0.0< 12.1.4 affected
< 11.6.6 affected
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I. Basic Information for CVE-2026-56094

Vulnerability Information
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Vulnerability Title
Information Disclosure in extension "Apache Solr for TYPO3 - Enterprise Search" (solr)
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
数据查询逻辑中特殊元素的不当中和
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
TYPO3 Extension "Apache Solr for TYPO3 - Enterprise Search" 13.0.0 ~ 13.1.4 -

II. Public POCs for CVE-2026-56094

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III. Intelligence Information for CVE-2026-56094

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Vendor Advisories for CVE-2026-56094 (1)

Same Patch Batch · TYPO3 · 2026-08-25 · 24 CVEs total

CVE-2026-77136 9.5 CRITICAL Server-Side Template Injection in extension "powermail" (powermail)
CVE-2026-77138 9.3 CRITICAL Remote Code Execution in extension "HTML5 Video Player vs. Powermail" (html5videoplayer_po
CVE-2026-77142 8.8 HIGH Broken Access Control in extension "Industry Directory" (yellowpages2)
CVE-2026-77143 8.8 HIGH Broken Access Control in extension "Forum" (pforum)
CVE-2026-77141 8.8 HIGH Broken Access Control in extension "Club Directory" (clubdirectory)
CVE-2026-77140 8.7 HIGH Broken Access Control in extension "Telephone Directory" (telephonedirectory)
CVE-2026-77146 8.3 HIGH Broken Access Control in extension "femanager" (femanager)
CVE-2026-77134 8.3 HIGH Broken Access Control in extension "femanager" (femanager)
CVE-2026-77135 8.2 HIGH Information Disclosure in extension "femanager" (femanager)
CVE-2026-77129 7.7 HIGH Server-Side Template Injection in extension "Event management and registration" (sf_event_
CVE-2026-77137 7.7 HIGH SQL Injection in extension "Forms Export" (frp_form_answers)
CVE-2026-56095 7.7 HIGH Insecure Deserialization in extension "Apache Solr for TYPO3 - Enterprise Search" (solr)
CVE-2026-56092 7.6 HIGH Broken Access Control in extension "Apache Solr for TYPO3 - Enterprise Search" (solr)
CVE-2026-77144 7.1 HIGH Broken Access Control in extension "Events 2" (events2)
CVE-2026-77145 7.1 HIGH Broken Access Control in extension "Events 2" (events2)
CVE-2026-56096 6.3 MEDIUM Information Disclosure in extension "Apache Solr for TYPO3 - Enterprise Search" (solr)
CVE-2026-56093 6.3 MEDIUM Broken Access Control in extension "Apache Solr for TYPO3 - Enterprise Search" (solr)
CVE-2026-77128 6.3 MEDIUM Broken Access Control in extension "Event management and registration" (sf_event_mgt)
CVE-2026-77139 6.0 MEDIUM Path Traversal in extension "Mask" (mask)
CVE-2026-77127 6.0 MEDIUM Information Disclosure in extension "Modules" (modules)

Showing top 20 of 24 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Extension "Apache Solr for TYPO3 - Enterprise Search"
Same vendor: TYPO3
Same weakness: CWE-943

V. Comments for CVE-2026-56094

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