zabbix: A low privilege Zabbix user with API access can exploit a blind SQL injection vulnerability in include/classes/api/CA...
CVE-2026-23921 is fixed in zabbix on 1 platform, first by DEBIAN-CVE-2026-23921, released March 24, 2026. It is not reported as exploited. Patch Radar priority: High.
A low privilege Zabbix user with API access can exploit a blind SQL injection vulnerability in include/classes/api/CApiService.php to execute arbitrary SQL selects via the sortfield parameter. Although query results are not returned directly, an attacker can exfiltrate arbitrary database data through time-based techniques, potentially leading to session identifier disclosure and administrator account compromise.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| zabbix · Debian 13.5 (trixie) | 1:7.0.22+dfsg-1~deb13u1 | DEBIAN-CVE-2026-23921 | Mar 24, 2026 |
| zabbix · Debian 14 | 1:7.0.22+dfsg-1 | DEBIAN-CVE-2026-23921 | Mar 24, 2026 |
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