CVE-2026-16531Medium· 5.3▾ SunlitAn 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.
▾ Sunlit zone — Low / medium · no exploitation signal
impact 29.2 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.5%
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.
pcp (all versions)pcppcppcp (all versions)pcp (all versions)openshift/ose-rhel-coreos-9 (all versions)openshift/ose-rhel-coreos-9 (all versions)Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
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.
Connected by shared product, vendor, weakness, or advisory.
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