Bug 2466967 (CVE-2026-23927)

Summary: CVE-2026-23927 Zabbix Agent 2: Oracle: Zabbix Agent 2: Oracle database credential disclosure via TNS connection string injection
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Zabbix Agent 2. A user with network access to Agent 2 can inject a malicious Oracle TNS (Transparent Network Substrate) connection string through the 'service' parameter. This allows Agent 2 to connect to an attacker-controlled server, potentially leading to the disclosure of Oracle database credentials if they are stored in a named session.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2467044, 2467045, 2467046, 2467047    
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Description OSIDB Bzimport 2026-05-06 08:01:28 UTC
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.