CVE-2026-24308

Improper handling of configuration values in ZKConfig in Apache ZooKeeper 3.8.5 and 3.9.4 on all platforms allows an attacker to expose sensitive information stored in client configuration in the client's logfile. Configuration values are exposed at INFO level logging rendering potential production systems affected by the issue. Users are recommended to upgrade to version 3.8.6 or 3.9.5 which fixes this issue.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://lists.apache.org/thread/qng3rtzv2pqkmko4rhv85jfplkyrgqdr	Mailing List Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/03/07/5	Mailing List Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:10184
https://access.redhat.com/errata/RHSA-2026:14272
https://access.redhat.com/errata/RHSA-2026:14276
https://access.redhat.com/errata/RHSA-2026:34608
https://access.redhat.com/errata/RHSA-2026:8509
https://access.redhat.com/security/cve/CVE-2026-24308
https://bugzilla.redhat.com/show_bug.cgi?id=2445451
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-24308.json

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:apache:zookeeper::::::::
	cpe:2.3:a:apache:zookeeper::::::::

History

No history.

Information

Published : 2026-03-07 09:16

Updated : 2026-07-15 02:18

NVD link : CVE-2026-24308

Mitre link : CVE-2026-24308

CVE.ORG link : CVE-2026-24308

JSON object : View

Products Affected

apache

zookeeper

CWE

CWE-532

Insertion of Sensitive Information into Log File

CWE-117

Improper Output Neutralization for Logs

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"weaknesses": [{"type": "Secondary", "source": "security@apache.org", "description": [{"lang": "en", "value": "CWE-532"}]}, {"type": "Secondary", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "description": [{"lang": "en", "value": "CWE-117"}]}], "descriptions": [{"lang": "en", "value": "Improper handling of configuration values in ZKConfig in Apache ZooKeeper 3.8.5 and 3.9.4 on all platforms allows an attacker to expose sensitive information stored in client configuration in the client's logfile. Configuration values are exposed at INFO level logging rendering potential production systems affected by the issue.\u00a0Users are recommended to upgrade to version 3.8.6 or 3.9.5 which fixes this issue."}, {"lang": "es", "value": "El manejo inadecuado de los valores de configuraci\u00f3n en ZKConfig en Apache ZooKeeper 3.8.5 y 3.9.4 en todas las plataformas permite a un atacante exponer informaci\u00f3n sensible almacenada en la configuraci\u00f3n del cliente en el archivo de registro del cliente. Los valores de configuraci\u00f3n se exponen en el registro de nivel INFO, lo que hace que los sistemas de producci\u00f3n potenciales se vean afectados por el problema. Se recomienda a los usuarios actualizar a la versi\u00f3n 3.8.6 o 3.9.5, que corrige este problema."}], "lastModified": "2026-07-15T02:18:48.833", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:apache:zookeeper:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1D3E8670-F4DD-400A-A459-9396353D5E7A", "versionEndExcluding": "3.8.6", "versionStartIncluding": "3.8.0"}, {"criteria": "cpe:2.3:a:apache:zookeeper:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "69917DB8-268C-4F60-AFAE-51FB24101BFE", "versionEndExcluding": "3.9.5", "versionStartIncluding": "3.9.0"}], "operator": "OR"}]}], "sourceIdentifier": "security@apache.org"}