CVE-2026-16524
High
Description
A command injection flaw in PCP's linux_sockets PMDA allows malicious shell metacharacters via the network.persocket.filter metric. This failed validation lets attackers execute arbitrary commands as the PMDA user when metrics refresh.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Red Hat Enterprise Linux 10
PublishedJul 30, 2026
First seenJul 30, 2026
Weakness typeCWE-78OS command injection
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 | — |
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