Vulnerability details
CVE-2026-23933
Zabbix Zabbix
Hardcoded session key in Zabbix 7.4
CVSS 4.0
7.7High
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.7High | 4.0 | CVEProject cvelistV5 (CNA) (Zabbix) | CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Zabbix | Zabbix | 7.4.0 ≤ v ≤ 7.4.10 | CVEProject cvelistV5 (CNA) |
References and advisories
1
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Details
- Published
- 2026-08-18
- Last updated
- 2026-08-19
- State
- Published
- Assigner (CNA)
- Zabbix
Exploit prediction (EPSS)
0.57%
Probability of exploitation in 30 days
47.5%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-259CWE-259: Use of Hard-coded Password