# CVE-2026-23927: zabbix: A user able to connect to Agent 2 can inject an Oracle TNS connection string via the 'service' parameter

CVE-2026-23927 is fixed in zabbix on 1 platform by DEBIAN-CVE-2026-23927 (version 1:7.0.27+dfsg-1), released May 6, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-23927
- Priority: Routine
- CVSS: 6.5 (medium)
- EPSS: 0.0022
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 6, 2026

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | zabbix Debian 14 | 1:7.0.27+dfsg-1 | [DEBIAN-CVE-2026-23927](https://patchblox.com/security/data/fix/linux/debian-cve-2026-23927.md) | May 6, 2026 |

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Data as of 2026-11-08T00:53:09Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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