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PUBLISHED

2026-01-21 14:16

MODIFIED

2026-01-21 14:16

EPSS (Prob. Exploit)

0.69%

Top 47.1%

DATA SOURCES:

NVD 🔗 2026-01-21 RED HAT 🔗 2026-01-25 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-11-08 GITHUB 🔗 2026-10-28 OSV 🔗 2026-11-08

> DESCRIPTION

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.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> WEAKNESSES

CWE-20

> CWE DETAILED DESCRIPTIONS

CWE-20: Improper Input Validation - The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

> RED HAT SEVERITY ASSESSMENT

THREAT SEVERITY

Moderate

> GITHUB SECURITY ADVISORY

GHSA-vc2w-4v3p-2mqw HIGH

Apache Solr: Insufficient file-access checking in standalone core-creation requests

AFFECTED PACKAGES:

MAVEN / org.apache.solr:solr-core

>= 8.6.0, < 9.10.1

Fixed in: 9.10.1

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

Apache Solr: Insufficient file-access checking in standalone core-creation requests

AFFECTED PACKAGES:

Unknown / Unknown

ALIASES:

BIT-solr-2026-22444, GHSA-vc2w-4v3p-2mqw

> HISTORIQUE DES MODIFICATIONS

Première apparition

21/01/2026 14:16

Source: NVD

📊 ENRICHISSEMENT 01/02/2026 06:44

CWE

Champ modifié: Description CWE

Ancienne valeur:

N/A

Nouvelle valeur:

CWE-20: Improper Input Validation - The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process...

📊 ENRICHISSEMENT 25/01/2026 05:01

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Moderate" }

Nouvelle valeur:

{ "threat_severity": "Moderate", "severity_scale": null }

📊 ENRICHISSEMENT 22/01/2026 23:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Moderate" }

Nouvelle valeur:

{ "threat_severity": "Moderate", "severity_scale": null }

📊 ENRICHISSEMENT 22/01/2026 22:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Moderate" }

Nouvelle valeur:

{ "threat_severity": "Moderate", "severity_scale": null }

📊 ENRICHISSEMENT 22/01/2026 21:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Moderate" }

Nouvelle valeur:

{ "threat_severity": "Moderate", "severity_scale": null }

📊 ENRICHISSEMENT 22/01/2026 20:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Moderate" }

Nouvelle valeur:

{ "threat_severity": "Moderate", "severity_scale": null }

📊 ENRICHISSEMENT 22/01/2026 19:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Moderate" }

Nouvelle valeur:

{ "threat_severity": "Moderate", "severity_scale": null }

📊 ENRICHISSEMENT 22/01/2026 18:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Moderate" }

Nouvelle valeur:

{ "threat_severity": "Moderate", "severity_scale": null }

📊 ENRICHISSEMENT 22/01/2026 17:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Moderate" }

Nouvelle valeur:

{ "threat_severity": "Moderate", "severity_scale": null }

📊 ENRICHISSEMENT 22/01/2026 16:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Moderate" }

Nouvelle valeur:

{ "threat_severity": "Moderate", "severity_scale": null }

📊 ENRICHISSEMENT 22/01/2026 15:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Moderate" }

Nouvelle valeur:

{ "threat_severity": "Moderate", "severity_scale": null }

📊 ENRICHISSEMENT 22/01/2026 14:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Moderate" }

Nouvelle valeur:

{ "threat_severity": "Moderate", "severity_scale": null }

📊 ENRICHISSEMENT 22/01/2026 13:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Moderate" }

Nouvelle valeur:

{ "threat_severity": "Moderate", "severity_scale": null }

📊 ENRICHISSEMENT 22/01/2026 12:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Moderate" }

Nouvelle valeur:

{ "threat_severity": "Moderate", "severity_scale": null }

📊 ENRICHISSEMENT 22/01/2026 11:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Moderate" }

Nouvelle valeur:

{ "threat_severity": "Moderate", "severity_scale": null }

📊 ENRICHISSEMENT 22/01/2026 10:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Moderate" }

Nouvelle valeur:

{ "threat_severity": "Moderate", "severity_scale": null }

📊 ENRICHISSEMENT 22/01/2026 09:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Moderate" }

Nouvelle valeur:

{ "threat_severity": "Moderate", "severity_scale": null }

📊 ENRICHISSEMENT 22/01/2026 08:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Moderate" }

Nouvelle valeur:

{ "threat_severity": "Moderate", "severity_scale": null }

📊 ENRICHISSEMENT 22/01/2026 07:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Moderate" }

Nouvelle valeur:

{ "threat_severity": "Moderate", "severity_scale": null }

📊 ENRICHISSEMENT 22/01/2026 06:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Moderate" }

Nouvelle valeur:

{ "threat_severity": "Moderate", "severity_scale": null }

📊 ENRICHISSEMENT 22/01/2026 05:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Moderate" }

Nouvelle valeur:

{ "threat_severity": "Moderate", "severity_scale": null }

📊 ENRICHISSEMENT 22/01/2026 04:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Moderate" }

Nouvelle valeur:

{ "threat_severity": "Moderate", "severity_scale": null }

📊 ENRICHISSEMENT 22/01/2026 03:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Moderate" }

Nouvelle valeur:

{ "threat_severity": "Moderate", "severity_scale": null }

📊 ENRICHISSEMENT 22/01/2026 02:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Moderate" }

Nouvelle valeur:

{ "threat_severity": "Moderate", "severity_scale": null }

📊 ENRICHISSEMENT 22/01/2026 01:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

{ "severity_scale": null, "threat_severity": "Moderate" }

Nouvelle valeur:

{ "threat_severity": "Moderate", "severity_scale": null }

📊 ENRICHISSEMENT 22/01/2026 00:30

REDHAT

Champ modifié: Sévérité Red Hat

Ancienne valeur:

N/A

Nouvelle valeur:

{ "threat_severity": "Moderate", "severity_scale": null }

📊 ENRICHISSEMENT 22/01/2026 00:30

REDHAT

Champ modifié: Red Hat

Ancienne valeur:

Non

Nouvelle valeur:

Oui

Total des modifications: 27 Dernière mise à jour: 9 months ago

> REFERENCES

https://lists.apache.org/thread/qkrb9dd4xrlqmmq73lrhkbfkttto2d1m

« BACK_TO_HOME

> CVE-2026-22444

> DESCRIPTION

> AFFECTED_PRODUCTS

> WEAKNESSES

> CWE DETAILED DESCRIPTIONS

> RED HAT SEVERITY ASSESSMENT

> GITHUB SECURITY ADVISORY

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

> HISTORIQUE DES MODIFICATIONS

> REFERENCES