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CVE-2026-63259: CWE-639 Authorization Bypass Through User-Controlled Key in Elastic Kibana

0
Medium
VulnerabilityCVE-2026-63259cvecve-2026-63259cwe-639
Published: 07/21/2026 (07/21/2026, 22:37:09 UTC)
Source: CVE Database V5
Vendor/Project: Elastic
Product: 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

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected software

GitHub Actionsmore threats →ai
elastic/kibana
pkg:github/elastic/kibana
Affected versions
=9.4.0

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AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 07/21/2026, 23:07:57 UTC

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.

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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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