Command Injection in PCP linux_sockets PMDA via network.persocket.filter
CVE-2026-16524 Published on July 30, 2026
Pcp: pcp linux_sockets pmda: arbitrary command execution via command injection
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.
Vulnerability Analysis
CVE-2026-16524 is exploitable with local system access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.
Timeline
Reported to Red Hat.
Made public. 8 days later.
Weakness Type
What is a Shell injection Vulnerability?
The software constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
CVE-2026-16524 has been classified to as a Shell injection vulnerability or weakness.
Products Associated with CVE-2026-16524
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