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CVE-2026-82298— Incorrect Authorization in Kibana Leading to Denial of Service

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 中的错误授权（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）引发服务拒绝（DoS）。

CVSS 4.3 · Medium

Possible ATT&CK Techniques 2 AI

T1079 T1614 · System Location Discovery

Affected Version Matrix 3

VendorProduct Version RangeStatus
Elastic Kibana 8.0.0≤ 8.19.20 affected
9.0.0≤ 9.4.5 affected
9.5.0≤ 9.5.2 affected
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I. Basic Information for CVE-2026-82298

Vulnerability Information
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Vulnerability Title
Incorrect Authorization in Kibana Leading to Denial of Service
Source: CVE Program / CVE List V5
Vulnerability Description
Incorrect Authorization (CWE-863) in Kibana can lead to denial of service via Exploiting Incorrectly Configured Access Control Security Levels (CAPEC-180).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Elastic Kibana 8.0.0 ~ 8.19.20 -

II. Public POCs for CVE-2026-82298

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III. Intelligence Information for CVE-2026-82298

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Vendor Advisories for CVE-2026-82298 (1)

Same Patch Batch · Elastic · 2026-09-03 · 7 CVEs total

CVE-2026-82302 8.1 HIGH Incorrect Authorization in Kibana Leading to Unauthorized Configuration Modification
CVE-2026-78583 8.1 HIGH Incorrect Authorization in Kibana Leading to Privilege Escalation
CVE-2026-82299 6.5 MEDIUM Incorrect Authorization in Kibana Leading to Information Disclosure
CVE-2026-78596 4.3 MEDIUM Missing Authorization in Kibana Leading to Unauthorized Cross-Space Write Operations
CVE-2026-78595 4.3 MEDIUM Missing Authorization in Kibana Fleet Plugin Leading to Cross-Space Agent Data Disclosure
CVE-2026-78593 4.3 MEDIUM Improper Control of Generation of Code in Kibana Leading to Privilege Escalation

IV. Related Vulnerabilities

Same product: Kibana
Same vendor: Elastic
Same weakness: CWE-863

V. Comments for CVE-2026-82298

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