Vulnerability 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.
Related Weaknesses (CWE)
References
FAQ
What is CVE-2026-23933?
CVE-2026-23933 is a documented vulnerability. 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...
How severe is CVE-2026-23933?
CVSS scoring is not yet available for CVE-2026-23933. Check NVD for updates.
Is there a patch for CVE-2026-23933?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.