Improper Neutralization of Special Elements in Output Used by a Downstream Component in Zabbix - CVE-2026-59787
Published: October 5, 2026
Vulnerability identifier: #VU153276
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-59787
CWE-ID: CWE-74
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to modify records for another host.
The vulnerability exists due to improper neutralization of the ZBXTRAP record delimiter in the zabbix_trap_receiver.pl Perl SNMP trap receiver script when processing crafted SNMP trap payloads. A remote user can send a crafted SNMP trap payload to inject a record targeting another host to modify records for another host.
Affected software
Zabbix
Fedora
zabbix6.0
zabbix
zabbix7.0
Fedora
zabbix6.0
zabbix
zabbix7.0
How to mitigate CVE-2026-59787
Install security update from vendor's website.
Zabbix - addressed in versions 6.0.48, 7.0.29, 7.4.13
zabbix6.0 - update to 6.0.48-1.el8
zabbix - update to 6.0.48-1.el9
zabbix7.0 - addressed in versions 7.0.31-1.el8, 7.0.31-1.el9, 7.0.31-1.el10_2, 7.0.31-1.el10_3, 7.0.31-1.el10_4
zabbix6.0 - update to 6.0.48-1.el8
zabbix - update to 6.0.48-1.el9
zabbix7.0 - addressed in versions 7.0.31-1.el8, 7.0.31-1.el9, 7.0.31-1.el10_2, 7.0.31-1.el10_3, 7.0.31-1.el10_4