Medium
Active agent heartbeat missing TLS check
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.
Announced Group revision 1
Original source ↗CVE-2026-59786
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-59786
Zabbix
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.zabbix.com/",
"vendor": "Zabbix",
"modules": [
"Server",
"Proxy"
],
"product": "Zabbix",
"versions": [
{
"status": "affected",
"changes": [
{
"at": "7.0.29",
"status": "unaffected"
}
],
"version": "7.0.0",
"versionType": "git",
"lessThanOrEqual": "7.0.28"
},
{
"status": "affected",
"changes": [
{
"at": "7.4.13",
"status": "unaffected"
}
],
"version": "7.4.0",
"versionType": "git",
"lessThanOrEqual": "7.4.12"
}
],
"defaultStatus": "unknown"
}
]- Related CVEs
- CVE-2026-59786
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #8559 · Revision 1
- Added to Heist Feed
- Publisher date