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CVE-2026-23933Hardcoded session key in Zabbix 7.4
In Zabbix 7.4 the cryptographic key used for signing Frontend sessions has been erroneously written to the database seed. Currently the only known exploitation scenario is for deployments that utilize both - SAML authentication and guest users. In such cases the key can be used to forge valid session cookies, potentially leading to unauthorized access. For other Zabbix deployments this does not have a known impact.
7.7 HIGHEPSS 0.57%Not in KEVNVD: Analyzed
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 7.7 | HIGH | 4.0Zabbix (CNA) | CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| 9.1 | CRITICAL | 3.1NVD | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
Details
- CVE ID
- CVE-2026-23933
- Status
- Analyzed
- Assigner (CNA)
- Zabbix
- Published
- Aug 18, 2026
- Last modified
- 2026-09-23 14:31 UTC
- Weaknesses
- CWE-259 · CWE-259: Use of Hard-coded Password
Affected Products
As published by the CNA in the CVE record.
ZabbixZabbix1 version range
- 7.4.0 through 7.4.10