CVE-2026-26940— Improper Validation of Specified Quantity in Input in Kibana Leading to Denial of Service
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2026-26940
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View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
Improper Validation of Specified Quantity in Input in Kibana Leading to Denial of Service
Source: NVD (National Vulnerability Database)
Vulnerability Description
Improper Validation of Specified Quantity in Input (CWE-1284) in the Timelion visualization plugin in Kibana can lead Denial of Service via Excessive Allocation (CAPEC-130). The vulnerability allows an authenticated user to send a specially crafted Timelion expression that overwrites internal series data properties with an excessively large quantity value.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
CWE-1284
Source: NVD (National Vulnerability Database)
Vulnerability Title
Elastic Kibana 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Elastic Kibana是Elastic公司的一个可用数据可视化仪表板软件。 Elastic Kibana存在安全漏洞，该漏洞源于输入数量验证不当，可能导致通过过度分配进行拒绝服务攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-26940
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-26940
请登录查看更多情报信息。
Same Patch Batch · Elastic · 2026-03-19 · 4 CVEs total
| CVE-2026-26939 | 6.5 MEDIUM | Missing Authorization in Kibana Leading to Unauthorized Endpoint Response Action Configura |
| CVE-2026-26931 | 5.7 MEDIUM | Memory Allocation with Excessive Size Value in Metricbeat Leading to Denial of Service |
| CVE-2026-26933 | 5.7 MEDIUM | Improper Validation of Array Index in Packetbeat Leading to Denial of Service |
IV. Related Vulnerabilities
Same product: Kibana
- CVE-2026-33458
Server-Side Request Forgery (SSRF) in Kibana One Workflow Le - CVE-2026-33459
Uncontrolled Resource Consumption in Kibana Leading to Denia - CVE-2026-33460
Incorrect Authorization in Kibana Fleet Leading to Informati - CVE-2026-33461
Incorrect Authorization in Kibana Fleet Leading to Informati - CVE-2026-4498
Execution with Unnecessary Privileges in Kibana Leading to r
Same vendor: Elastic
- CVE-2026-33467
Improper Verification of Cryptographic Signature in Elastic - CVE-2026-33466
Improper Limitation of a Pathname to a Restricted Directory - CVE-2026-33458
Server-Side Request Forgery (SSRF) in Kibana One Workflow Le - CVE-2026-33459
Uncontrolled Resource Consumption in Kibana Leading to Denia - CVE-2026-33460
Incorrect Authorization in Kibana Fleet Leading to Informati
Same weakness: CWE-1284
- CVE-2026-25863
Conditional Fields for Contact Form 7 < 2.7.3 DoS via Uncont - CVE-2025-14688
IBM® Db2® is vulnerable to a denial of service when fetching - CVE-2026-6915
Flaw in the updateUser Command May Allow Unauthorized Config - CVE-2026-1352
IBM® Db2® is vulnerable to a trap or return SQLCODE -901 whe - CVE-2026-6839
ONE 安全漏洞
V. Comments for CVE-2026-26940
No comments yet