Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-26932— Improper Validation of Array Index in Packetbeat Leading to Denial of Service

Quick assessment

Affected
Elastic Packetbeat
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.

Elastic Packetbeat是荷兰Elastic公司的一个数据采集器。 Elastic Packetbeat存在安全漏洞，该漏洞源于PostgreSQL协议解析器存在数组索引验证不当，可能导致攻击者通过发送特制数据包引发Go运行时崩溃，造成拒绝服务。

CVSS 5.7 · Medium EPSS 0.45% · P38

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-26932

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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 Array Index in Packetbeat Leading to Denial of Service
Source: CVE Program / CVE List V5
Vulnerability Description
Improper Validation of Array Index (CWE-129) in the PostgreSQL protocol parser in Packetbeat can lead Denial of Service via Input Data Manipulation (CAPEC-153). An attacker can send a specially crafted packet causing a Go runtime panic that terminates the Packetbeat process. This vulnerability requires the pgsql protocol to be explicitly enabled and configured to monitor traffic on the targeted port.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对数组索引的验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Elastic Packetbeat 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Elastic Packetbeat是荷兰Elastic公司的一个数据采集器。 Elastic Packetbeat存在安全漏洞，该漏洞源于PostgreSQL协议解析器存在数组索引验证不当，可能导致攻击者通过发送特制数据包引发Go运行时崩溃，造成拒绝服务。
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

Vendor Product Affected Versions CPE Subscribe
Elastic Packetbeat 9.0.0 ~ 9.2.4 -

II. Public POCs for CVE-2026-26932

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-26932

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-26932 (1)

Same Patch Batch · Elastic · 2026-02-26 · 6 CVEs total

CVE-2026-26938 8.6 HIGH Improper Neutralization of Special Elements Used in a Template Engine in Kibana Workflows
CVE-2026-26937 6.5 MEDIUM Uncontrolled Resource Consumption in Kibana Leading to Denial of Service
CVE-2026-26935 6.5 MEDIUM Improper Input Validation in Kibana Leading to Denial of Service
CVE-2026-26934 6.5 MEDIUM Improper Validation of Specified Quantity in Input in Kibana Leading to Denial of Service
CVE-2026-26936 4.9 MEDIUM Inefficient Regular Expression Complexity in Kibana Leading to Denial of Service

IV. Related Vulnerabilities

Same product: Packetbeat
Same vendor: Elastic
Same weakness: CWE-129

V. Comments for CVE-2026-26932

No comments yet

Leave a comment