CVE-2026-23927

Agent 2 Oracle plugin TNS connection string injection via the 'service' parameter

Published May 6, 2026 CVSS 4.0 · 5.1 Medium EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Solution

Update the affected components to their respective fixed versions.


Vendor Workaround

Don't use named sessions for Oracle database monitoring.

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N'}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Zabbix
Zabbix zabbix
Vendors & Products Zabbix
Zabbix zabbix
Type Values Removed Values Added
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.
Title Agent 2 Oracle plugin TNS connection string injection via the 'service' parameter
Weaknesses CWE-522
References
Metrics cvssV4_0

{'score': 5.1, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Zabbix
Published
Updated
May 6, 2026, 1:00 PM
Reserved
Jan 19, 2026, 2:02 PM
Status
Analyzed
Published
May 6, 2026, 8:16 AM
Modified
Sep 18, 2026, 3:26 PM