CVE-2026-16524 Pcp: pcp linux_sockets pmda: arbitrary command execution via command injection
Attackers can execute arbitrary commands as the PMDA user via malicious shell metacharacters in the network.persocket.filter metric.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-16524?
CVE-2026-16524 is a high-severity command injection vulnerability in Red Hat Enterprise Linux 10, published on 30 Jul 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-78
Which versions are affected by CVE-2026-16524?
How do I fix CVE-2026-16524?
Apply the vendor's patch.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-16524 being exploited?
There is no known exploitation of CVE-2026-16524 in the wild and no public exploit code.
Sources
Also known as AZL-94377, DEBIAN-CVE-2026-16524, GHSA-f5qw-jg2q-vf56, UBUNTU-CVE-2026-16524.