High 7.3Published Jul 30, 2026

CVE-2026-16527Pcp: pcp pmproxy: unauthenticated access to /store endpoint allows bypassing pmcd access rules

Updated under an hour ago (Oct 27, 2026, 11:23 PM ET)

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It affects Red Hat Enterprise Linux 10 and 7 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Red Hat Enterprise Linux 10

Exploited in the last 30 days

An unauthenticated remote attacker can bypass access controls by sending crafted requests to the PCP pmproxy /store endpoint. This allows the attacker to overwrite any PMDA metric, leading to arbitrary code execution and system takeover.

CVSS: 7.3 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Weakness (CWE): CWE-306, CWE-284
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: redhat
NVD analysis: Awaiting Analysis
Record last updated: Oct 1, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux	from 0:7.0.3-5.el10_2 not affected	CNA record
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support redhat:enterprise_linux_eus	from 0:6.3.7-1.el10_0.1 not affected	CNA record
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support redhat:rhel_aus	from 0:5.2.5-8.el8_4.1 not affected	CNA record
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support redhat:rhel_eus_long_life	from 0:5.2.5-8.el8_4.1 not affected	CNA record
Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service redhat:rhel_e4s	from 0:5.3.7-19.el8_8.1 not affected	CNA record
Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service redhat:rhel_tus	from 0:5.3.7-19.el8_8.1 not affected	CNA record
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support redhat:rhel_eus	from 0:6.3.7-1.el9_6.1 not affected	CNA record
Red Hat Red Hat OpenShift Container Platform 4 redhat:openshift	4	CNA record

References

References

https://access.redhat.com/errata/RHSA-2026:55560	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:55617	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:55740	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:72272	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:72273	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:72593	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:72594	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:73767	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:74612	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:74613	vendor-advisory, x-refsource-redhat
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The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.