Description
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.
References10
- access.redhat.com/errata/RHSA-2026:55560
- access.redhat.com/errata/RHSA-2026:55617
- access.redhat.com/errata/RHSA-2026:55740
- access.redhat.com/errata/RHSA-2026:72272
- access.redhat.com/errata/RHSA-2026:72273
- access.redhat.com/errata/RHSA-2026:72593
- access.redhat.com/errata/RHSA-2026:72594
- access.redhat.com/errata/RHSA-2026:73767
- access.redhat.com/errata/RHSA-2026:74612
- access.redhat.com/errata/RHSA-2026:74613
Metrics
- CVSS 3.1
-
7.3
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L - EPSS — exploit probability
- 1% percentile: 49 · as of 13 November 2026
- CWE
- CWE-306CWE-284
Could this be exploited in your environment?
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