Missing Authentication for Critical Function Affecting pcp-export-zabbix-agent package, versions <0:5.3.7-22.el8_10.5


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.5% (41st percentile)

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  • Snyk IDSNYK-RHEL8-PCPEXPORTZABBIXAGENT-18431262
  • published30 Jul 2026
  • disclosed30 Jul 2026

Introduced: 30 Jul 2026

NewCVE-2026-16527  (opens in a new tab)
CWE-306  (opens in a new tab)

How to fix?

Upgrade RHEL:8 pcp-export-zabbix-agent to version 0:5.3.7-22.el8_10.5 or higher.
This issue was patched in RHSA-2026:55560.

NVD Description

Note: Versions mentioned in the description apply only to the upstream pcp-export-zabbix-agent package and not the pcp-export-zabbix-agent package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

An unauthenticated remote attacker can bypass access controls by sending crafted requests to the PCP pmproxy /store endpoint. This allows the attacker to overwrite any PMDA metric, leading to arbitrary code execution and system takeover.

CVSS Base Scores

version 3.1