Bug 2545904

Summary: CVE-2026-59783 zabbix7.0: Zabbix: Denial of service via null byte input in binary items [epel-all]
Product: [Fedora] Fedora EPEL Reporter: Laura Pardo <lpardo>
Component: zabbix7.0Assignee: Orion Poplawski <orion>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: epel10CC: orion
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["73b86268-8a46-454e-b5c3-2acb46d2cac1"]}
Fixed In Version: zabbix7.0-7.0.31-1.el10_4 zabbix7.0-7.0.31-1.el8 zabbix7.0-7.0.31-1.el10_2 zabbix7.0-7.0.31-1.el10_3 zabbix7.0-7.0.31-1.el9 Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-10-14 00:30:04 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2545873    

Description Laura Pardo 2026-10-05 12:58:55 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

The Zabbix Server/Proxy has a vulnerability where binary items can crash the Server/Proxy on certain NULL byte input leading to potential loss of availability. This only affects deployments where MySQL/MariaDB database is used as the Zabbix database.

Comment 1 Fedora Update System 2026-10-05 14:28:52 UTC
FEDORA-EPEL-2026-6aaa054bb4 (zabbix7.0-7.0.31-1.el10_2) has been submitted as an update to Fedora EPEL 10.2.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-6aaa054bb4

Comment 2 Fedora Update System 2026-10-05 14:29:02 UTC
FEDORA-EPEL-2026-0879abafaa (zabbix7.0-7.0.31-1.el9) has been submitted as an update to Fedora EPEL 9.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-0879abafaa

Comment 3 Fedora Update System 2026-10-05 14:29:11 UTC
FEDORA-EPEL-2026-042a8bf4e4 (zabbix7.0-7.0.31-1.el10_3) has been submitted as an update to Fedora EPEL 10.3.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-042a8bf4e4

Comment 4 Fedora Update System 2026-10-05 14:29:21 UTC
FEDORA-EPEL-2026-3e248bfcbd (zabbix7.0-7.0.31-1.el10_4) has been submitted as an update to Fedora EPEL 10.4.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-3e248bfcbd

Comment 5 Fedora Update System 2026-10-06 01:31:07 UTC
FEDORA-EPEL-2026-3e248bfcbd has been pushed to the Fedora EPEL 10.4 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-3e248bfcbd

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 6 Fedora Update System 2026-10-06 01:40:07 UTC
FEDORA-EPEL-2026-367fe24aeb has been pushed to the Fedora EPEL 8 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-367fe24aeb

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 7 Fedora Update System 2026-10-06 01:45:57 UTC
FEDORA-EPEL-2026-6aaa054bb4 has been pushed to the Fedora EPEL 10.2 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-6aaa054bb4

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 8 Fedora Update System 2026-10-06 01:55:35 UTC
FEDORA-EPEL-2026-042a8bf4e4 has been pushed to the Fedora EPEL 10.3 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-042a8bf4e4

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 9 Fedora Update System 2026-10-06 02:02:10 UTC
FEDORA-EPEL-2026-0879abafaa has been pushed to the Fedora EPEL 9 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-0879abafaa

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 10 Fedora Update System 2026-10-14 00:30:04 UTC
FEDORA-EPEL-2026-3e248bfcbd (zabbix7.0-7.0.31-1.el10_4) has been pushed to the Fedora EPEL 10.4 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 11 Fedora Update System 2026-10-14 00:47:02 UTC
FEDORA-EPEL-2026-367fe24aeb (zabbix7.0-7.0.31-1.el8) has been pushed to the Fedora EPEL 8 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 12 Fedora Update System 2026-10-14 01:00:28 UTC
FEDORA-EPEL-2026-6aaa054bb4 (zabbix7.0-7.0.31-1.el10_2) has been pushed to the Fedora EPEL 10.2 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 13 Fedora Update System 2026-10-14 01:16:34 UTC
FEDORA-EPEL-2026-042a8bf4e4 (zabbix7.0-7.0.31-1.el10_3) has been pushed to the Fedora EPEL 10.3 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 14 Fedora Update System 2026-10-14 01:35:20 UTC
FEDORA-EPEL-2026-0879abafaa (zabbix7.0-7.0.31-1.el9) has been pushed to the Fedora EPEL 9 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 15 Fedora Update System 2026-10-14 16:18:31 UTC
FEDORA-EPEL-2026-042a8bf4e4 (zabbix7.0-7.0.31-1.el10_3) has been pushed to the Fedora EPEL 10.3 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 16 Fedora Update System 2026-10-14 16:18:32 UTC
FEDORA-EPEL-2026-6aaa054bb4 (zabbix7.0-7.0.31-1.el10_2) has been pushed to the Fedora EPEL 10.2 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 17 Fedora Update System 2026-10-14 16:18:35 UTC
FEDORA-EPEL-2026-3e248bfcbd (zabbix7.0-7.0.31-1.el10_4) has been pushed to the Fedora EPEL 10.4 stable repository.
If problem still persists, please make note of it in this bug report.