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RockyLinux 10 : pcp (RLSA-2026:55617)

high Nessus Plugin ID 337640

Synopsis

The remote RockyLinux host is missing one or more security updates.

Description

The remote RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:55617 advisory.

 * PCP: PCP linux_sockets PMDA: Arbitrary Command Execution via Command Injection (CVE-2026-16524)

 * PCP: PCP: Privilege escalation to root via linux_sockets PMDA vulnerability (CVE-2026-16526)

 * PCP: PCP pmproxy: Unauthenticated access to /store endpoint allows bypassing pmcd access rules (CVE-2026-16527)

 * PCP: PCP: Denial of Service due to signed integer overflow (CVE-2026-16529)

Tenable has extracted the preceding description block directly from the RockyLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://bugzilla.redhat.com/show_bug.cgi?id=2506023

https://bugzilla.redhat.com/show_bug.cgi?id=2506026

https://bugzilla.redhat.com/show_bug.cgi?id=2506031

https://bugzilla.redhat.com/show_bug.cgi?id=2506032

https://errata.rockylinux.org/RLSA-2026:55617

Plugin Details

Severity: High

ID: 337640

File Name: rocky_linux_RLSA-2026-55617.nasl

Version: 1.1

Type: Local

Published: 8/18/2026

Updated: 8/18/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.15

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-16524

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS Score Source: CVE-2026-16526

Vulnerability Information

CPE: cpe:/o:rocky:linux:10, p-cpe:/a:rocky:linux:pcp-conf, p-cpe:/a:rocky:linux:pcp-debuginfo, p-cpe:/a:rocky:linux:pcp-debugsource, p-cpe:/a:rocky:linux:pcp-devel-debuginfo, p-cpe:/a:rocky:linux:pcp-devel, p-cpe:/a:rocky:linux:pcp-doc, p-cpe:/a:rocky:linux:pcp-export-pcp2elasticsearch, p-cpe:/a:rocky:linux:pcp-export-pcp2graphite, p-cpe:/a:rocky:linux:pcp-export-pcp2influxdb, p-cpe:/a:rocky:linux:pcp-export-pcp2json, p-cpe:/a:rocky:linux:pcp-export-pcp2openmetrics, p-cpe:/a:rocky:linux:pcp-export-pcp2opentelemetry, p-cpe:/a:rocky:linux:pcp-export-pcp2spark, p-cpe:/a:rocky:linux:pcp-export-pcp2xml, p-cpe:/a:rocky:linux:pcp-export-pcp2zabbix, p-cpe:/a:rocky:linux:pcp-export-zabbix-agent-debuginfo, p-cpe:/a:rocky:linux:pcp-export-zabbix-agent, p-cpe:/a:rocky:linux:pcp-geolocate, p-cpe:/a:rocky:linux:pcp-gui-debuginfo, p-cpe:/a:rocky:linux:pcp-gui, p-cpe:/a:rocky:linux:pcp-import-benchmarks, p-cpe:/a:rocky:linux:pcp-import-collectl2pcp-debuginfo, p-cpe:/a:rocky:linux:pcp-import-collectl2pcp, p-cpe:/a:rocky:linux:pcp-import-ganglia2pcp, p-cpe:/a:rocky:linux:pcp-import-iostat2pcp, p-cpe:/a:rocky:linux:pcp-import-mrtg2pcp, p-cpe:/a:rocky:linux:pcp-import-pmseries, p-cpe:/a:rocky:linux:pcp-import-sar2pcp, p-cpe:/a:rocky:linux:pcp-libs-debuginfo, p-cpe:/a:rocky:linux:pcp-libs-devel, p-cpe:/a:rocky:linux:pcp-libs, p-cpe:/a:rocky:linux:pcp-pmda-activemq, p-cpe:/a:rocky:linux:pcp-pmda-amdgpu-debuginfo, p-cpe:/a:rocky:linux:pcp-pmda-amdgpu, p-cpe:/a:rocky:linux:pcp-pmda-apache-debuginfo, p-cpe:/a:rocky:linux:pcp-pmda-apache, p-cpe:/a:rocky:linux:pcp-pmda-bash-debuginfo, p-cpe:/a:rocky:linux:pcp-pmda-bash, p-cpe:/a:rocky:linux:pcp-pmda-bcc, p-cpe:/a:rocky:linux:pcp-pmda-bind2, p-cpe:/a:rocky:linux:pcp-pmda-bonding, p-cpe:/a:rocky:linux:pcp-pmda-bpf-debuginfo, p-cpe:/a:rocky:linux:pcp-pmda-bpf, p-cpe:/a:rocky:linux:pcp-pmda-bpftrace, p-cpe:/a:rocky:linux:pcp-pmda-cifs-debuginfo, p-cpe:/a:rocky:linux:pcp-pmda-cifs, p-cpe:/a:rocky:linux:pcp-pmda-cisco-debuginfo, p-cpe:/a:rocky:linux:pcp-pmda-cisco, p-cpe:/a:rocky:linux:pcp-pmda-dbping, p-cpe:/a:rocky:linux:pcp-pmda-denki-debuginfo, p-cpe:/a:rocky:linux:pcp-pmda-denki, p-cpe:/a:rocky:linux:pcp-pmda-dm-debuginfo, p-cpe:/a:rocky:linux:pcp-pmda-dm, p-cpe:/a:rocky:linux:pcp-pmda-docker-debuginfo, p-cpe:/a:rocky:linux:pcp-pmda-docker, p-cpe:/a:rocky:linux:pcp-pmda-ds389, p-cpe:/a:rocky:linux:pcp-pmda-ds389log, p-cpe:/a:rocky:linux:pcp-pmda-elasticsearch, p-cpe:/a:rocky:linux:pcp-pmda-farm-debuginfo, p-cpe:/a:rocky:linux:pcp-pmda-farm, p-cpe:/a:rocky:linux:pcp-pmda-gluster, p-cpe:/a:rocky:linux:pcp-pmda-gpfs, p-cpe:/a:rocky:linux:pcp-pmda-gpsd, p-cpe:/a:rocky:linux:pcp-pmda-hacluster-debuginfo, p-cpe:/a:rocky:linux:pcp-pmda-hacluster, p-cpe:/a:rocky:linux:pcp-pmda-haproxy, p-cpe:/a:rocky:linux:pcp-pmda-hdb, p-cpe:/a:rocky:linux:pcp-pmda-infiniband-debuginfo, p-cpe:/a:rocky:linux:pcp-pmda-infiniband, p-cpe:/a:rocky:linux:pcp-pmda-libvirt, p-cpe:/a:rocky:linux:pcp-pmda-lio, p-cpe:/a:rocky:linux:pcp-pmda-lmsensors, p-cpe:/a:rocky:linux:pcp-pmda-logger-debuginfo, p-cpe:/a:rocky:linux:pcp-pmda-logger, p-cpe:/a:rocky:linux:pcp-pmda-lustre, p-cpe:/a:rocky:linux:pcp-pmda-lustrecomm-debuginfo, p-cpe:/a:rocky:linux:pcp-pmda-lustrecomm, p-cpe:/a:rocky:linux:pcp-pmda-mailq-debuginfo, p-cpe:/a:rocky:linux:pcp-pmda-mailq, p-cpe:/a:rocky:linux:pcp-pmda-memcache, p-cpe:/a:rocky:linux:pcp-pmda-mic, p-cpe:/a:rocky:linux:pcp-pmda-mongodb, p-cpe:/a:rocky:linux:pcp-pmda-mounts-debuginfo, p-cpe:/a:rocky:linux:pcp-pmda-mounts, p-cpe:/a:rocky:linux:pcp-pmda-mssql, p-cpe:/a:rocky:linux:pcp-pmda-mysql, p-cpe:/a:rocky:linux:pcp-pmda-named, p-cpe:/a:rocky:linux:pcp-pmda-netcheck, p-cpe:/a:rocky:linux:pcp-pmda-netfilter, p-cpe:/a:rocky:linux:pcp-pmda-news, p-cpe:/a:rocky:linux:pcp-pmda-nfsclient, p-cpe:/a:rocky:linux:pcp-pmda-nginx, p-cpe:/a:rocky:linux:pcp-pmda-nvidia-gpu-debuginfo, p-cpe:/a:rocky:linux:pcp-pmda-nvidia-gpu, p-cpe:/a:rocky:linux:pcp-pmda-openmetrics, p-cpe:/a:rocky:linux:pcp-pmda-opentelemetry, p-cpe:/a:rocky:linux:pcp-pmda-openvswitch, p-cpe:/a:rocky:linux:pcp-pmda-oracle, p-cpe:/a:rocky:linux:pcp-pmda-pdns, p-cpe:/a:rocky:linux:pcp-pmda-perfevent-debuginfo, p-cpe:/a:rocky:linux:pcp-pmda-perfevent, p-cpe:/a:rocky:linux:pcp-pmda-podman-debuginfo, p-cpe:/a:rocky:linux:pcp-pmda-podman, p-cpe:/a:rocky:linux:pcp-pmda-postfix, p-cpe:/a:rocky:linux:pcp-pmda-postgresql, p-cpe:/a:rocky:linux:pcp-pmda-rabbitmq, p-cpe:/a:rocky:linux:pcp-pmda-redis, p-cpe:/a:rocky:linux:pcp-pmda-resctrl-debuginfo, p-cpe:/a:rocky:linux:pcp-pmda-resctrl, p-cpe:/a:rocky:linux:pcp-pmda-rocestat, p-cpe:/a:rocky:linux:pcp-pmda-roomtemp-debuginfo, p-cpe:/a:rocky:linux:pcp-pmda-roomtemp, p-cpe:/a:rocky:linux:pcp-pmda-rsyslog, p-cpe:/a:rocky:linux:pcp-pmda-samba, p-cpe:/a:rocky:linux:pcp-pmda-sendmail-debuginfo, p-cpe:/a:rocky:linux:pcp-pmda-sendmail, p-cpe:/a:rocky:linux:pcp-pmda-shping-debuginfo, p-cpe:/a:rocky:linux:pcp-pmda-shping, p-cpe:/a:rocky:linux:pcp-pmda-slurm, p-cpe:/a:rocky:linux:pcp-pmda-smart-debuginfo, p-cpe:/a:rocky:linux:pcp-pmda-smart, p-cpe:/a:rocky:linux:pcp-pmda-snmp, p-cpe:/a:rocky:linux:pcp-pmda-sockets-debuginfo, p-cpe:/a:rocky:linux:pcp-pmda-sockets, p-cpe:/a:rocky:linux:pcp-pmda-statsd-debuginfo, p-cpe:/a:rocky:linux:pcp-pmda-statsd, p-cpe:/a:rocky:linux:pcp-pmda-summary-debuginfo, p-cpe:/a:rocky:linux:pcp-pmda-summary, p-cpe:/a:rocky:linux:pcp-pmda-systemd-debuginfo, p-cpe:/a:rocky:linux:pcp-pmda-systemd, p-cpe:/a:rocky:linux:pcp-pmda-trace-debuginfo, p-cpe:/a:rocky:linux:pcp-pmda-trace, p-cpe:/a:rocky:linux:pcp-pmda-unbound, p-cpe:/a:rocky:linux:pcp-pmda-uwsgi, p-cpe:/a:rocky:linux:pcp-pmda-weblog-debuginfo, p-cpe:/a:rocky:linux:pcp-pmda-weblog, p-cpe:/a:rocky:linux:pcp-pmda-zimbra-debuginfo, p-cpe:/a:rocky:linux:pcp-pmda-zimbra, p-cpe:/a:rocky:linux:pcp-pmda-zswap, p-cpe:/a:rocky:linux:pcp-selinux, p-cpe:/a:rocky:linux:pcp-system-tools-debuginfo, p-cpe:/a:rocky:linux:pcp-system-tools, p-cpe:/a:rocky:linux:pcp-testsuite-debuginfo, p-cpe:/a:rocky:linux:pcp-testsuite, p-cpe:/a:rocky:linux:pcp-zeroconf, p-cpe:/a:rocky:linux:pcp, p-cpe:/a:rocky:linux:perl-pcp-logimport-debuginfo, p-cpe:/a:rocky:linux:perl-pcp-logimport, p-cpe:/a:rocky:linux:perl-pcp-logsummary, p-cpe:/a:rocky:linux:perl-pcp-mmv-debuginfo, p-cpe:/a:rocky:linux:perl-pcp-mmv, p-cpe:/a:rocky:linux:perl-pcp-pmda-debuginfo, p-cpe:/a:rocky:linux:perl-pcp-pmda, p-cpe:/a:rocky:linux:python3-pcp-debuginfo, p-cpe:/a:rocky:linux:python3-pcp

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/RockyLinux/release, Host/RockyLinux/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 8/18/2026

Vulnerability Publication Date: 7/30/2026

Reference Information

CVE: CVE-2026-16524, CVE-2026-16526, CVE-2026-16527, CVE-2026-16529