CVE-2026-63259: CWE-639 Authorization Bypass Through User-Controlled Key in Elastic Kibana
Authorization Bypass Through User-Controlled Key (CWE-639) in Kibana can lead to information disclosure via user-supplied identifiers that reference scheduled query result data from Kibana Spaces the requester is not authorized to access.
AI Analysis
Technical Summary
This vulnerability in Kibana 9.4.0 involves an authorization bypass via user-controlled keys. Specifically, an attacker can supply identifiers that reference scheduled query result data belonging to Kibana Spaces they should not have access to, potentially leading to unauthorized information disclosure. The issue is categorized as CWE-639 (Authorization Bypass Through User-Controlled Key). No official patch or remediation level has been provided by the vendor at this time.
Potential Impact
The impact is limited to unauthorized disclosure of information from scheduled query results in Kibana Spaces that the attacker is not authorized to access. There is no indication of integrity or availability impact. The CVSS vector indicates network attack vector, low attack complexity, requiring low privileges, no user interaction, and only confidentiality impact.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or remediation level is provided, users should monitor Elastic's advisories for updates. Until a fix is available, restrict access to Kibana and scheduled query data to trusted users only and review access controls carefully to minimize exposure.
CVE-2026-63259: CWE-639 Authorization Bypass Through User-Controlled Key in Elastic Kibana
Description
Authorization Bypass Through User-Controlled Key (CWE-639) in Kibana can lead to information disclosure via user-supplied identifiers that reference scheduled query result data from Kibana Spaces the requester is not authorized to access.
CVSS v3.1
Score 4.3medium
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Kibana 9.4.0 involves an authorization bypass via user-controlled keys. Specifically, an attacker can supply identifiers that reference scheduled query result data belonging to Kibana Spaces they should not have access to, potentially leading to unauthorized information disclosure. The issue is categorized as CWE-639 (Authorization Bypass Through User-Controlled Key). No official patch or remediation level has been provided by the vendor at this time.
Potential Impact
The impact is limited to unauthorized disclosure of information from scheduled query results in Kibana Spaces that the attacker is not authorized to access. There is no indication of integrity or availability impact. The CVSS vector indicates network attack vector, low attack complexity, requiring low privileges, no user interaction, and only confidentiality impact.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or remediation level is provided, users should monitor Elastic's advisories for updates. Until a fix is available, restrict access to Kibana and scheduled query data to trusted users only and review access controls carefully to minimize exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- elastic
- Date Reserved
- 2026-07-16T03:26:51.579Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a5ff8649c2644c7f8e52c8c
Added to database: 07/21/2026, 22:53:24 UTC
Last enriched: 07/21/2026, 23:07:57 UTC
Last updated: 07/22/2026, 00:10:22 UTC
Views: 4
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