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CVE-2026-23927— Agent 2 Oracle plugin TNS connection string injection via the 'service' parameter

Quick assessment

Affected
Zabbix Zabbix
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.

Zabbix是Zabbix公司的一套开源的监控系统。该系统支持网络监控、服务器监控、云监控和应用监控等。 Zabbix存在安全漏洞，该漏洞源于能够连接到Agent 2的用户可以通过service参数注入Oracle TNS连接字符串，可能导致Agent 2连接到攻击者控制的服务器并泄露Oracle数据库凭据。

AI Predicted 8.1 Difficulty: Easy EPSS 0.22% · P12

Affected Version Matrix 3

VendorProduct Version RangeStatus
Zabbix Zabbix 6.0.0≤ 6.0.44 affected
7.0.0≤ 7.0.23 affected
7.4.0≤ 7.4.7 affected
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I. Basic Information for CVE-2026-23927

Vulnerability Information
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Vulnerability Title
Agent 2 Oracle plugin TNS connection string injection via the 'service' parameter
Source: CVE Program / CVE List V5
Vulnerability Description
A user able to connect to Agent 2 can inject an Oracle TNS connection string via the 'service' parameter. This can lead to Agent 2 connecting to an attacker-controlled server and leaking Oracle database credentials if they are saved in a named session.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:L/VA:N/SC:H/SI:H/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
不充分的凭证保护机制
Source: CVE Program / CVE List V5
Vulnerability Title
Zabbix 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Zabbix是Zabbix公司的一套开源的监控系统。该系统支持网络监控、服务器监控、云监控和应用监控等。 Zabbix存在安全漏洞，该漏洞源于能够连接到Agent 2的用户可以通过service参数注入Oracle TNS连接字符串，可能导致Agent 2连接到攻击者控制的服务器并泄露Oracle数据库凭据。
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
Zabbix Zabbix 6.0.0 ~ 6.0.44 -

II. Public POCs for CVE-2026-23927

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III. Intelligence Information for CVE-2026-23927

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Vendor Advisories for CVE-2026-23927 (1)

Same Patch Batch · Zabbix · 2026-05-06 · 3 CVEs total

CVE-2026-23928 Stored XSS vulnerability in the Item history/Plain text widget
CVE-2026-23926 Stored XSS vulnerability in Host navigator widget maintenance tooltip

IV. Related Vulnerabilities

Same product: Zabbix
Same vendor: Zabbix
Same weakness: CWE-522

V. Comments for CVE-2026-23927

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