UBUNTU-CVE-2026-22444

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Source
https://ubuntu.com/security/CVE-2026-22444
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-22444.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-22444
Upstream
Published
2026-01-21T14:16:00Z
Modified
2026-01-30T21:03:24.042971Z
Severity
  • 7.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

The "create core" API of Apache Solr 8.6 through 9.10.0 lacks sufficient input validation on some API parameters, which can cause Solr to check the existence of and attempt to read file-system paths that should be disallowed by Solr's "allowPaths" security setting https://https://solr.apache.org/guide/solr/latest/configuration-guide/configuring-solr-xml.html#the-solr-element .  These read-only accesses can allow users to create cores using unexpected configsets if any are accessible via the filesystem.  On Windows systems configured to allow UNC paths this can additionally cause disclosure of NTLM "user" hashes. Solr deployments are subject to this vulnerability if they meet the following criteria: * Solr is running in its "standalone" mode. * Solr's "allowPath" setting is being used to restrict file access to certain directories. * Solr's "create core" API is exposed and accessible to untrusted users.  This can happen if Solr's RuleBasedAuthorizationPlugin https://solr.apache.org/guide/solr/latest/deployment-guide/rule-based-authorization-plugin.html is disabled, or if it is enabled but the "core-admin-edit" predefined permission (or an equivalent custom permission) is given to low-trust (i.e. non-admin) user roles. Users can mitigate this by enabling Solr's RuleBasedAuthorizationPlugin (if disabled) and configuring a permission-list that prevents untrusted users from creating new Solr cores.  Users should also upgrade to Apache Solr 9.10.1 or greater, which contain fixes for this issue.

References

Affected packages

Ubuntu:20.04:LTS
lucene-solr

Package

Name
lucene-solr
Purl
pkg:deb/ubuntu/lucene-solr@3.6.2+dfsg-22?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.6.2+dfsg-20
3.6.2+dfsg-22

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.6.2+dfsg-22",
            "binary_name": "liblucene3-contrib-java"
        },
        {
            "binary_version": "3.6.2+dfsg-22",
            "binary_name": "liblucene3-java"
        },
        {
            "binary_version": "3.6.2+dfsg-22",
            "binary_name": "libsolr-java"
        },
        {
            "binary_version": "3.6.2+dfsg-22",
            "binary_name": "solr-common"
        },
        {
            "binary_version": "3.6.2+dfsg-22",
            "binary_name": "solr-jetty"
        },
        {
            "binary_version": "3.6.2+dfsg-22",
            "binary_name": "solr-tomcat"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-22444.json"
Ubuntu:22.04:LTS
lucene-solr

Package

Name
lucene-solr
Purl
pkg:deb/ubuntu/lucene-solr@3.6.2+dfsg-24?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.6.2+dfsg-24

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.6.2+dfsg-24",
            "binary_name": "liblucene3-contrib-java"
        },
        {
            "binary_version": "3.6.2+dfsg-24",
            "binary_name": "liblucene3-java"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-22444.json"
Ubuntu:24.04:LTS
lucene-solr

Package

Name
lucene-solr
Purl
pkg:deb/ubuntu/lucene-solr@3.6.2+dfsg-26?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.6.2+dfsg-26

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.6.2+dfsg-26",
            "binary_name": "liblucene3-contrib-java"
        },
        {
            "binary_version": "3.6.2+dfsg-26",
            "binary_name": "liblucene3-java"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-22444.json"
Ubuntu:25.10
lucene-solr

Package

Name
lucene-solr
Purl
pkg:deb/ubuntu/lucene-solr@3.6.2+dfsg-26?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.6.2+dfsg-26

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.6.2+dfsg-26",
            "binary_name": "liblucene3-contrib-java"
        },
        {
            "binary_version": "3.6.2+dfsg-26",
            "binary_name": "liblucene3-java"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-22444.json"
Ubuntu:Pro:14.04:LTS
lucene-solr

Package

Name
lucene-solr
Purl
pkg:deb/ubuntu/lucene-solr@3.6.2+dfsg-2ubuntu0.1~esm4?arch=source&distro=esm-infra-legacy/trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.6.2+dfsg-1
3.6.2+dfsg-2
3.6.2+dfsg-2ubuntu0.1~esm1
3.6.2+dfsg-2ubuntu0.1~esm2
3.6.2+dfsg-2ubuntu0.1~esm4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.6.2+dfsg-2ubuntu0.1~esm4",
            "binary_name": "liblucene3-contrib-java"
        },
        {
            "binary_version": "3.6.2+dfsg-2ubuntu0.1~esm4",
            "binary_name": "liblucene3-java"
        },
        {
            "binary_version": "3.6.2+dfsg-2ubuntu0.1~esm4",
            "binary_name": "libsolr-java"
        },
        {
            "binary_version": "3.6.2+dfsg-2ubuntu0.1~esm4",
            "binary_name": "solr-common"
        },
        {
            "binary_version": "3.6.2+dfsg-2ubuntu0.1~esm4",
            "binary_name": "solr-jetty"
        },
        {
            "binary_version": "3.6.2+dfsg-2ubuntu0.1~esm4",
            "binary_name": "solr-tomcat"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-22444.json"
Ubuntu:Pro:16.04:LTS
lucene-solr

Package

Name
lucene-solr
Purl
pkg:deb/ubuntu/lucene-solr@3.6.2+dfsg-8ubuntu0.1+esm1?arch=source&distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.6.2+dfsg-7
3.6.2+dfsg-8
3.6.2+dfsg-8ubuntu0.1
3.6.2+dfsg-8ubuntu0.1+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.6.2+dfsg-8ubuntu0.1+esm1",
            "binary_name": "liblucene3-contrib-java"
        },
        {
            "binary_version": "3.6.2+dfsg-8ubuntu0.1+esm1",
            "binary_name": "liblucene3-java"
        },
        {
            "binary_version": "3.6.2+dfsg-8ubuntu0.1+esm1",
            "binary_name": "libsolr-java"
        },
        {
            "binary_version": "3.6.2+dfsg-8ubuntu0.1+esm1",
            "binary_name": "solr-common"
        },
        {
            "binary_version": "3.6.2+dfsg-8ubuntu0.1+esm1",
            "binary_name": "solr-jetty"
        },
        {
            "binary_version": "3.6.2+dfsg-8ubuntu0.1+esm1",
            "binary_name": "solr-tomcat"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-22444.json"
Ubuntu:Pro:18.04:LTS
lucene-solr

Package

Name
lucene-solr
Purl
pkg:deb/ubuntu/lucene-solr@3.6.2+dfsg-18~18.04.1~esm2?arch=source&distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.6.2+dfsg-10
3.6.2+dfsg-11
3.6.2+dfsg-18~18.04
3.6.2+dfsg-18~18.04.1~esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.6.2+dfsg-18~18.04.1~esm2",
            "binary_name": "liblucene3-contrib-java"
        },
        {
            "binary_version": "3.6.2+dfsg-18~18.04.1~esm2",
            "binary_name": "liblucene3-java"
        },
        {
            "binary_version": "3.6.2+dfsg-18~18.04.1~esm2",
            "binary_name": "libsolr-java"
        },
        {
            "binary_version": "3.6.2+dfsg-18~18.04.1~esm2",
            "binary_name": "solr-common"
        },
        {
            "binary_version": "3.6.2+dfsg-18~18.04.1~esm2",
            "binary_name": "solr-jetty"
        },
        {
            "binary_version": "3.6.2+dfsg-18~18.04.1~esm2",
            "binary_name": "solr-tomcat"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-22444.json"