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Vulnerabilities / CVE-2026-23933

critical

CVE-2026-23933

In Zabbix 7.4 the cryptographic key used for signing Frontend ses ...

Published Modified CWE 259
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Trivy's own label is CRITICAL. Rated critical by NVD.

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.

Affected packages and fixed versions

SourcePackageFixed in
rapidfort alpine 3.20zabbix7.4.11-r0
rapidfort alpine 3.21zabbix7.4.11-r0
rapidfort alpine 3.22zabbix7.4.11-r0
rapidfort alpine 3.23zabbix7.4.11-r0
rapidfort fedora 43zabbix, zabbix-dbfiles-mysql, zabbix-dbfiles-pgsql and 12 more1:7.4.12-1.fc43
Show all 19 entries from 5 sources
SourcePackageFixed in
rapidfort alpine 3.20zabbix7.4.11-r0
rapidfort alpine 3.21zabbix7.4.11-r0
rapidfort alpine 3.22zabbix7.4.11-r0
rapidfort alpine 3.23zabbix7.4.11-r0
rapidfort fedora 43zabbix1:7.4.12-1.fc43
rapidfort fedora 43zabbix-dbfiles-mysql1:7.4.12-1.fc43
rapidfort fedora 43zabbix-dbfiles-pgsql1:7.4.12-1.fc43
rapidfort fedora 43zabbix-dbfiles-sqlite31:7.4.12-1.fc43
rapidfort fedora 43zabbix-proxy1:7.4.12-1.fc43
rapidfort fedora 43zabbix-proxy-mysql1:7.4.12-1.fc43
rapidfort fedora 43zabbix-proxy-pgsql1:7.4.12-1.fc43
rapidfort fedora 43zabbix-proxy-sqlite31:7.4.12-1.fc43
rapidfort fedora 43zabbix-selinux1:7.4.12-1.fc43
rapidfort fedora 43zabbix-server1:7.4.12-1.fc43
rapidfort fedora 43zabbix-server-mysql1:7.4.12-1.fc43
rapidfort fedora 43zabbix-server-pgsql1:7.4.12-1.fc43
rapidfort fedora 43zabbix-web1:7.4.12-1.fc43
rapidfort fedora 43zabbix-web-mysql1:7.4.12-1.fc43
rapidfort fedora 43zabbix-web-pgsql1:7.4.12-1.fc43

References

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.