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RHEL 9 : pcp (RHSA-2026:97556)

medium Nessus Plugin ID 378513

Synopsis

The remote Red Hat host is missing a security update.

Description

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:97556 advisory.

 Performance Co-Pilot (PCP) is a suite of tools, services, and libraries for acquisition, archiving, and analysis of system-level performance measurements. Its light-weight distributed architecture makes it particularly well-suited to centralized analysis of complex systems.

 Security Fix(es):

 * PCP: PCP: Remote denial of service and information leakage (CVE-2026-16530)

 Bug Fix(es) and Enhancement(s):

 * [pcp pmda ds389] some metrics display error of compatibility (JIRA:RHEL-159914)

 For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

 Additional Changes:

 For detailed information on changes in this release, see the Red Hat Enterprise Linux 9 Release Notes linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

Solution

Update the affected packages.

See Also

https://access.redhat.com/errata/RHSA-2026:97556

https://access.redhat.com/security/updates/classification/#moderate

https://bugzilla.redhat.com/show_bug.cgi?id=2506033

https://issues.redhat.com/browse/RHEL-159914

http://www.nessus.org/u?aa1363de

http://www.nessus.org/u?d26c0db5

Plugin Details

Severity: Medium

ID: 378513

File Name: redhat-RHSA-2026-97556.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 11/10/2026

Updated: 11/10/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 2.1

Percentile: 7.9

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: High

Base Score: 8.5

Temporal Score: 6.3

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

CVSS Score Source: CVE-2026-16530

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

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

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:redhat:enterprise_linux:pcp-conf, p-cpe:/a:redhat:enterprise_linux:pcp-devel, p-cpe:/a:redhat:enterprise_linux:pcp-doc, p-cpe:/a:redhat:enterprise_linux:pcp-export-pcp2elasticsearch, p-cpe:/a:redhat:enterprise_linux:pcp-export-pcp2graphite, p-cpe:/a:redhat:enterprise_linux:pcp-export-pcp2influxdb, p-cpe:/a:redhat:enterprise_linux:pcp-export-pcp2json, p-cpe:/a:redhat:enterprise_linux:pcp-export-pcp2openmetrics, p-cpe:/a:redhat:enterprise_linux:pcp-export-pcp2spark, p-cpe:/a:redhat:enterprise_linux:pcp-export-pcp2xml, p-cpe:/a:redhat:enterprise_linux:pcp-export-pcp2zabbix, p-cpe:/a:redhat:enterprise_linux:pcp-export-zabbix-agent, p-cpe:/a:redhat:enterprise_linux:pcp-geolocate, p-cpe:/a:redhat:enterprise_linux:pcp-gui, p-cpe:/a:redhat:enterprise_linux:pcp-import-collectl2pcp, p-cpe:/a:redhat:enterprise_linux:pcp-import-ganglia2pcp, p-cpe:/a:redhat:enterprise_linux:pcp-import-iostat2pcp, p-cpe:/a:redhat:enterprise_linux:pcp-import-mrtg2pcp, p-cpe:/a:redhat:enterprise_linux:pcp-import-sar2pcp, p-cpe:/a:redhat:enterprise_linux:pcp-libs-devel, p-cpe:/a:redhat:enterprise_linux:pcp-libs, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-activemq, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-amdgpu, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-apache, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-bash, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-bcc, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-bind2, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-bonding, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-bpf, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-bpftrace, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-cifs, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-cisco, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-dbping, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-denki, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-dm, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-docker, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-ds389, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-ds389log, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-elasticsearch, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-farm, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-gfs2, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-gluster, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-gpfs, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-gpsd, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-hacluster, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-haproxy, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-infiniband, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-json, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-libvirt, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-lio, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-lmsensors, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-logger, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-lustre, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-lustrecomm, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-mailq, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-memcache, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-mic, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-mongodb, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-mounts, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-mssql, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-mysql, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-named, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-netcheck, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-netfilter, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-news, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-nfsclient, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-nginx, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-nvidia-gpu, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-openmetrics, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-openvswitch, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-oracle, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-pdns, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-perfevent, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-podman, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-postfix, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-postgresql, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-rabbitmq, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-redis, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-resctrl, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-roomtemp, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-rsyslog, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-samba, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-sendmail, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-shping, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-slurm, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-smart, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-snmp, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-sockets, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-statsd, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-summary, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-systemd, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-trace, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-unbound, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-uwsgi, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-weblog, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-zimbra, p-cpe:/a:redhat:enterprise_linux:pcp-pmda-zswap, p-cpe:/a:redhat:enterprise_linux:pcp-selinux, p-cpe:/a:redhat:enterprise_linux:pcp-system-tools, p-cpe:/a:redhat:enterprise_linux:pcp-testsuite, p-cpe:/a:redhat:enterprise_linux:pcp-zeroconf, p-cpe:/a:redhat:enterprise_linux:pcp, p-cpe:/a:redhat:enterprise_linux:perl-pcp-logimport, p-cpe:/a:redhat:enterprise_linux:perl-pcp-logsummary, p-cpe:/a:redhat:enterprise_linux:perl-pcp-mmv, p-cpe:/a:redhat:enterprise_linux:perl-pcp-pmda, p-cpe:/a:redhat:enterprise_linux:python3-pcp

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

Exploit Ease: No known exploits are available

Patch Publication Date: 11/10/2026

Vulnerability Publication Date: 7/30/2026

Reference Information

CVE: CVE-2026-16530

CWE: 125

RHSA: 2026:97556