Read the docs
TI-2026-19277 Aliases CVE-2026-23933GHSA-5j5m-c26m-fvc8

Hardcoded session key in Zabbix 7.4

Priority LOW 36CWE-259Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
Present
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-259.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00574 47th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

No affected products listed by the sources yet.

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*7.4.0 to before 7.4.11VulnerableZabbix
  • cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:* Versions 7.4.0 to before 7.4.11 Vulnerable ·Zabbix

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-23933
  2. 2026-10-03 Alias added: GHSA-5j5m-c26m-fvc8

References

Advisory 1

  • TI-2022-07300 Authentication bypass by spoofing in Zabbix Frontend KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-28315 SQL injection in user.get API CVSS 3.1CRITICAL 9.9
  • TI-2016-08210 SQL injection vulnerability in Zabbix before 2.2.14 and 3.0 before 3.0.4 allows remote… CVSS 3.0CRITICAL 9.8
  • TI-2013-04884 Multiple SQL injection vulnerabilities in Zabbix 1.8.x before 1.8.18rc1, 2.0.x before 2.0.9rc1, and 2.1.x before 2.1.7. CVSS 3.1CRITICAL 9.8
  • TI-2022-07303 Possible view of the setup pages by unauthenticated users if config file already exists KEVCVSS 3.1MEDIUM 5.3
  • TI-2024-14721 Time Based SQL Injection in Zabbix Server Audit Log CVSS 3.1CRITICAL 9.1
See all 114 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences