CVE Feed

    Dashboard / CVE / CVE-2026-50022

    CVE-2026-50022

    Metacat is data repository software that helps researchers preserve, share, and discover data. Prior to 3.4.2, MetacatSolrIndex.query forwards the client-controlled qt parameter through Apache SolrJ from search endpoints such as /d1/mn/v2/query/solr/ to its privileged Solr backend. An unauthenticated client can select the /admin/file handler, and SolrJ reformats the parameter into a request accepted even when handleSelect=false is configured on Solr 7.0 or later. When Solr returns the selected core configuration file, Metacat embeds the raw content in an XML processing error response, disclosing internal files such as solrconfig.xml and enabling infrastructure profiling. This issue is fixed in version 3.4.2.

    Published:Sep 17, 2026
    Last Modified:Sep 18, 2026
    EPS:Sep 17, 2026
    EPSS Score:0.00291
    CVSS Score:5.8

    Affected Products

    Vendor
    Nceas
    Product
    Metacat

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-441 Unintended Proxy or Intermediary

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-219 XML Routing Detour Attacks
    CAPEC-465 Transparent Proxy Abuse

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High