A flaw in the PCP linux_sockets module exposes an unsecured internal connection.
An attacker with initial code execution can exploit this to escalate privileges and execute arbitrary commands as root.
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

To mitigate this vulnerability, ensure that the `linux_sockets` PMDA is not configured to load as a Dynamic Shared Object (DSO) within PMCD. The default configuration for this PMDA is daemon mode, which is not affected by this flaw. Review your `pmcd.conf` file to confirm the `linux_sockets` PMDA is not loaded as a DSO. If changes are made to `pmcd.conf`, a restart of the `pmcd` service is required for them to take effect.

History

Tue, 04 Aug 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 30 Jul 2026 14:30:00 +0000

Type Values Removed Values Added
First Time appeared Redhat openshift Container Platform
Vendors & Products Redhat openshift Container Platform

Thu, 30 Jul 2026 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Important


Thu, 30 Jul 2026 05:30:00 +0000

Type Values Removed Values Added
Description A flaw in the PCP linux_sockets module exposes an unsecured internal connection. An attacker with initial code execution can exploit this to escalate privileges and execute arbitrary commands as root.
Title Pcp: pcp: privilege escalation to root via linux_sockets pmda vulnerability
First Time appeared Redhat
Redhat enterprise Linux
Redhat openshift
Weaknesses CWE-403
CPEs cpe:/a:redhat:openshift:4
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
Redhat openshift
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-08-04T17:33:41.000Z

Reserved: 2026-07-22T07:26:46.736Z

Link: CVE-2026-16526

cve-icon Vulnrichment

Updated: 2026-07-30T13:55:13.920Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-07-30T06:25:02.663

Modified: 2026-08-04T18:16:47.223

Link: CVE-2026-16526

cve-icon Redhat

Severity : Important

Publid Date: 2026-07-30T00:00:00Z

Links: CVE-2026-16526 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-08-03T11:30:03Z

Weaknesses