(In Zabbix 7.4 the cryptographic key used for signing Frontend sessions ...) (CVE-2026-23933)
Description
CVE-2026-23933 is a vulnerability in Zabbix 7.4 related to the cryptographic key used for signing Frontend sessions. The flaw affects multiple specific versions of Zabbix packaged for Ubuntu. The vulnerability has a medium severity rating based on CVSS 4.0 metrics. There is no explicit patch or remediation information provided in the available data. No known exploits are reported in the wild.
CVSS v4.0
Affected software
pkg:deb/ubuntu/zabbix?arch=source&distro=esm-infra-legacy/trustypkg:deb/ubuntu/zabbix?arch=source&distro=esm-apps/xenialpkg:deb/ubuntu/zabbix?arch=source&distro=esm-apps/bionicpkg:deb/ubuntu/zabbix?arch=source&distro=esm-apps/focalpkg:deb/ubuntu/zabbix?arch=source&distro=esm-apps/jammypkg:deb/ubuntu/zabbix?arch=source&distro=resoluteRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability concerns the cryptographic key used for signing Frontend sessions in Zabbix 7.4. The affected versions include numerous Ubuntu package versions from 1:2.0.6+dfsg-1ubuntu2 through 1:7.0.22+dfsg-1. The CVSS 4.0 vector indicates the attack requires adjacent network access, low attack complexity, no privileges required, no user interaction, and results in high impact on confidentiality, integrity, and availability. No cloud service is involved, and no vendor advisory or patch information is provided.
Potential Impact
Successful exploitation could compromise the confidentiality, integrity, and availability of Zabbix Frontend sessions, potentially allowing unauthorized access or session manipulation. The medium severity rating reflects significant but not critical impact. There are no known active exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround information is provided in the available data. Users should monitor official Zabbix and Ubuntu security advisories for updates and apply patches promptly once available.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- UBUNTU-CVE-2026-23933
- Osv Schema Version
- 1.7.0
- Ecosystems
- ["Ubuntu:Pro:14.04:LTS","Ubuntu:Pro:16.04:LTS","Ubuntu:Pro:18.04:LTS","Ubuntu:Pro:20.04:LTS","Ubuntu:Pro:22.04:LTS","Ubuntu:26.04:LTS"]
- Cvss Version
- 4.0
Threat ID: 6a870a6facd9273b49b589c3
Added to database: 08/20/2026, 14:08:47 UTC
Last enriched: 08/20/2026, 14:25:38 UTC
Last updated: 10/05/2026, 06:48:15 UTC
Views: 44
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