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.
Metrics
Affected Vendors & Products
References
| Link | Providers |
|---|---|
| https://support.zabbix.com/browse/ZBX-28071 |
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History
Wed, 19 Aug 2026 05:30:00 +0000
| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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Tue, 18 Aug 2026 14:30:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Zabbix
Zabbix zabbix |
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| Vendors & Products |
Zabbix
Zabbix zabbix |
Tue, 18 Aug 2026 12:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | Hardcoded session key in Zabbix 7.4 | |
| Weaknesses | CWE-259 | |
| References |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: Zabbix
Published:
Updated: 2026-08-19T03:55:57.404Z
Reserved: 2026-01-19T14:03:13.686Z
Link: CVE-2026-23933
Updated: 2026-08-18T12:51:57.299Z
Status : Received
Published: 2026-08-18T13:17:21.567
Modified: 2026-08-19T04:16:58.293
Link: CVE-2026-23933
No data.
OpenCVE Enrichment
Updated: 2026-08-18T14:15:07Z