CVE-2026-23933
CVE-2026-23933 · Hardcoded session key in Zabbix 7.4
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 7.7 · High · EPSS 0.4% · Fix available
- Published
- Updated
Stack: system · applications
Affected products and versions
zabbix
- Versions
- ≥ 7.4.0, ≤ 7.4.10: Affected; ≥ 7.4.11: Not affected (git)
Update to 7.4.11
zabbix Ubuntu:Pro:14.04:LTS
- Versions
- 1:2.0.6+dfsg-1ubuntu2
- 1:2.2.0+dfsg-1ubuntu1
- 1:2.2.0+dfsg-6ubuntu1
- 1:2.2.1+dfsg-1ubuntu3
- 1:2.2.2+dfsg-1ubuntu1
- 1:2.2.2+dfsg-1ubuntu1+esm1
- 1:2.2.2+dfsg-1ubuntu1+esm3
- 1:2.2.2+dfsg-1ubuntu1+esm4
- 1:2.2.2+dfsg-1ubuntu1+esm5
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
zabbix Ubuntu:Pro:16.04:LTS
- Versions
- 1:2.4.6+dfsg-1
- 1:2.4.7+dfsg-1
- 1:2.4.7+dfsg-2
- 1:2.4.7+dfsg-2ubuntu2
- 1:2.4.7+dfsg-2ubuntu2.1
- 1:2.4.7+dfsg-2ubuntu2.1+esm1
- 1:2.4.7+dfsg-2ubuntu2.1+esm2
- 1:2.4.7+dfsg-2ubuntu2.1+esm3
- 1:2.4.7+dfsg-2ubuntu2.1+esm4
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
zabbix Ubuntu:Pro:18.04:LTS
- Versions
- 1:3.0.7+dfsg-3
- 1:3.0.12+dfsg-1
- 1:3.0.12+dfsg-1ubuntu0.1~esm1
- 1:3.0.12+dfsg-1ubuntu0.1~esm2
- 1:3.0.12+dfsg-1ubuntu0.1~esm3
- 1:3.0.12+dfsg-1ubuntu0.1~esm4
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
zabbix Ubuntu:Pro:20.04:LTS
- Versions
- 1:4.0.4+dfsg-1build2
- 1:4.0.4+dfsg-1build3
- 1:4.0.11+dfsg-1
- 1:4.0.14+dfsg-1
- 1:4.0.15+dfsg-1
- 1:4.0.16+dfsg-1
- 1:4.0.16+dfsg-1build1
- 1:4.0.17+dfsg-1
- 1:4.0.17+dfsg-1ubuntu0.1~esm1
- 1:4.0.17+dfsg-1ubuntu0.1~esm2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
zabbix Ubuntu:Pro:22.04:LTS
- Versions
- 1:5.0.8+dfsg-1build1
- 1:5.0.14+dfsg-1
- 1:5.0.17+dfsg-1
- 1:5.0.17+dfsg-1ubuntu0.1~esm1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
zabbix Ubuntu:26.10
- Versions
- 1:7.0.22+dfsg-1
- 1:7.0.22+dfsg-1.1
- 1:7.0.22+dfsg-1.1build1
- 1:7.0.22+dfsg-1.1build2
- 1:7.0.27+dfsg-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
zabbix Ubuntu:26.04:LTS
- Versions
- 1:7.0.10+dfsg-2build1
- 1:7.0.22+dfsg-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published