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TI-2026-67599 Aliases CVE-2026-59782GHSA-wg6x-hw9j-7vg6

Zabbix JavaScript preprocessing leaks heap memory

Priority LOW 30CWE-125Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.

Summary

Zabbix versions from 6.0.0 through 6.0.47, from 7.0.0 through 7.0.28 and from 7.4.0 through 7.4.12 are affected. The JavaScript preprocessing engine (Duktape) on the Zabbix server has an out-of-bounds read (CWE-125). A limited administrator over the network can read raw heap data, which may leak data from other running preprocessors that the administrator cannot otherwise access.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

The JavaScript preprocessing (Duktape) engine on Zabbix server has a vulnerability where a limited administrator is able to read raw heap data potentially resulting in leaked data from other running preprocessors not available to said administrator.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00242 15th 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
Partial

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.

Remediation

The sources list no fixed version for Zabbix.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-05 Threatist record created from CVE-2026-59782
  2. 2026-10-05 Alias added: GHSA-wg6x-hw9j-7vg6
  3. 2026-10-06 Affected versions changed · Red Hat
  4. 2026-10-06 CVSS score added · Red Hat

References

Other 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-2022-21297 X-Forwarded-For header is active by default causes access to Zabbix sites in maintenance mode 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
See all 144 →

Sources

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