Bug 2545909

Summary: CVE-2026-59786 zabbix7.0: zabbix: Host status spoofing via unauthenticated active agent heartbeats [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": ["c8bcc5f3-82de-4489-889b-0bb3eedb0aba"]}
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 00:30:10 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: 2545874    

Description Laura Pardo 2026-10-05 13:04:02 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.

Zabbix Server and Proxy accept the active agent heartbeat message regardless of the configured PSK or certificate authentication. This means someone with access to the Zabbix trapper port can report an arbitrary host using an active agent as available, resulting in a loss of integrity.

Comment 1 Fedora Update System 2026-10-05 14:28:57 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 14:29:07 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 14:29:16 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 14:29:26 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 01:31:11 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 01:40:11 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 01:46:00 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 01:55:38 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 02:02:13 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 00:30:10 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 00:47:09 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 01:00:35 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 01:16:49 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 01:35:27 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 16:18:35 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 16:18:35 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 16:18:39 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.