CVE-2026-78598— Incorrect Authorization in Kibana Leading to Unauthorized Cross-Space Exposure of Machine Learning Job Data
Quick assessment
Affected
Elastic Kibana
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Kibana 机器学习功能中的授权不当（CWE-863）可能导致通过利用错误配置的访问控制安全级别（CAPEC-180）造成信息泄露。在单个 Kibana 空间中，拥有机器学习作业管理权限的已认证用户，可以使某作业所关联的保存对象在整个 Kibana 实例的所有空间中变得可访问，而用户并不拥有对这些额外空间的访问权限。
Possible ATT&CK Techniques 1 AI
T1078 · Valid Accounts
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2026-78598
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Incorrect Authorization in Kibana Leading to Unauthorized Cross-Space Exposure of Machine Learning Job Data
Source: CVE Program / CVE List V5
Vulnerability Description
Incorrect Authorization (CWE-863) in the Kibana machine learning feature can lead to information disclosure via Exploiting Incorrectly Configured Access Control Security Levels (CAPEC-180). An authenticated user holding machine learning job management privileges within a single Kibana space could cause a job's saved object to become accessible across all spaces in the Kibana instance, without holding access rights to those additional spaces.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-78598
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-78598
请登录查看更多情报信息。
Other References for CVE-2026-78598 (1)
Same Patch Batch · Elastic · 2026-09-02 · 15 CVEs total
| CVE-2026-78604 | 7.8 HIGH | Incorrect Permission Assignment for Critical Resource in Elastic Agent Leading to Local Pr |
| CVE-2026-78590 | 7.3 HIGH | Improper Limitation of a Pathname to a Restricted Directory in Kibana Leading to Unauthori |
| CVE-2026-78588 | 6.5 MEDIUM | Allocation of Resources Without Limits or Throttling in Filebeat Leading to Denial of Serv |
| CVE-2026-78586 | 6.5 MEDIUM | Allocation of Resources Without Limits or Throttling in Kibana Leading to Denial of Servic |
| CVE-2026-78599 | 6.5 MEDIUM | Stored Path Traversal in Kibana Leading to Unauthorized Deletion of Internal Resources |
| CVE-2026-78591 | 6.3 MEDIUM | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in Kibana L |
| CVE-2026-78601 | 5.5 MEDIUM | Missing Authorization in Kibana Leading to Unauthorized Elasticsearch Index Data Exposure |
| CVE-2026-78609 | 5.4 MEDIUM | Incorrect Authorization in Elastic Cloud on Kubernetes Leading to Unauthorized Modificatio |
| CVE-2026-78602 | 5.3 MEDIUM | Improper Limitation of a Pathname to a Restricted Directory in Elastic Maps Server Leading |
| CVE-2026-78594 | 4.9 MEDIUM | Improper Handling of Highly Compressed Data in APM Server Leading to Persistent Denial of |
| CVE-2026-82293 | 4.3 MEDIUM | Incorrect Authorization in Kibana Leading to Unauthorized Resource Consumption |
| CVE-2026-78584 | 4.3 MEDIUM | Observable Response Discrepancy in Kibana Leading to Cross-Space Information Disclosure |
| CVE-2026-78600 | 3.5 LOW | Incomplete Cleanup in Elastic Cloud on Kubernetes Leading to Unauthorized Cross-Namespace |
| CVE-2026-78587 | 3.1 LOW | Incorrect Authorization in Fleet Server Leading to Denial of Service of Agent Upload Opera |
IV. Related Vulnerabilities
Same product: Kibana
-
CVE-2026-82293
Incorrect Authorization in Kibana Leading to Unauthorized Re -
CVE-2026-78586
Allocation of Resources Without Limits or Throttling in Kiba -
CVE-2026-78584
Observable Response Discrepancy in Kibana Leading to Cross-S -
CVE-2026-78591
Improper Limitation of a Pathname to a Restricted Directory -
CVE-2026-78590
Improper Limitation of a Pathname to a Restricted Directory
Same vendor: Elastic
-
CVE-2026-82293
Incorrect Authorization in Kibana Leading to Unauthorized Re -
CVE-2026-78588
Allocation of Resources Without Limits or Throttling in File -
CVE-2026-78587
Incorrect Authorization in Fleet Server Leading to Denial of -
CVE-2026-78586
Allocation of Resources Without Limits or Throttling in Kiba -
CVE-2026-78584
Observable Response Discrepancy in Kibana Leading to Cross-S
Same weakness: CWE-863
-
CVE-2026-82293
Incorrect Authorization in Kibana Leading to Unauthorized Re -
CVE-2026-78587
Incorrect Authorization in Fleet Server Leading to Denial of -
CVE-2026-78609
Incorrect Authorization in Elastic Cloud on Kubernetes Leadi -
CVE-2026-73475
Commerce PayPal - Moderately critical - Access bypass - SA-C -
CVE-2026-73478
Diff - Moderately critical - Access bypass - SA-CONTRIB-2026
V. Comments for CVE-2026-78598
No comments yet