CVE-2026-16527
High
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.
SeverityHigh
CVSS7.3
Exploit probability—
Product
Red Hat Enterprise Linux 10
PublishedJul 30, 2026
First seenJul 30, 2026
Weakness typeCWE-306Missing authentication for critical function
How to fix
Vendor advisories
- 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
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat Red Hat Enterprise Linux 10 | No range specified | — |
| Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support | No range specified | — |
| enterprise_linux 8 | No range specified | — |
| rhel_aus 8.4 | No range specified | — |
| rhel_aus 8.6 | No range specified | — |
| rhel_e4s 8.8 | No range specified | — |
| enterprise_linux 9 | No range specified | — |
| rhel_e4s 9.2 | No range specified | — |
| rhel_e4s 9.4 | No range specified | — |
| rhel_eus 9.6 | No range specified | — |
| Red Hat Red Hat Enterprise Linux 7 | No range specified | — |
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