An unauthenticated remote attacker can exploit a path traversal vulnerability in the PCP pmproxy logger servlet using a crafted hostname. This allows arbitrary file and directory creation, potentially leading to a denial of service.

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Fixes

Solution

No solution given by the vendor.


Workaround

To mitigate this issue, restrict network access to TCP port 44322, which is used by the pmproxy service. This can be achieved by configuring a firewall to block incoming connections to this port. Alternatively, if the pmproxy service is not essential for your environment, it can be disabled. To disable the pmproxy service: sudo systemctl stop pmproxy sudo systemctl disable pmproxy Warning: Disabling pmproxy may impact the functionality of Performance Co-Pilot components that rely on it for data collection and logging.

History

Thu, 30 Jul 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, '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

Moderate


Thu, 30 Jul 2026 06:15:00 +0000

Type Values Removed Values Added
Description An unauthenticated remote attacker can exploit a path traversal vulnerability in the PCP pmproxy logger servlet using a crafted hostname. This allows arbitrary file and directory creation, potentially leading to a denial of service.
Title Pcp: pcp: arbitrary file creation via path traversal in pmproxy logger servlet
First Time appeared Redhat
Redhat enterprise Linux
Redhat openshift
Weaknesses CWE-22
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': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-07-30T15:17:27.782Z

Reserved: 2026-07-22T08:02:56.004Z

Link: CVE-2026-16531

cve-icon Vulnrichment

Updated: 2026-07-30T14:38:08.356Z

cve-icon NVD

No data.

cve-icon Redhat

Severity : Moderate

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

Links: CVE-2026-16531 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-07-30T14:00:38Z

Weaknesses