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PCP linux_sockets PMDA command injection via network.persocket.filter metric allows arbitrary command execution as PMDA user

Last refreshed2026-09-30

Status: NEW  |  Advisory ID: CVE-2026-16524

Key Details

CVECVE-2026-16524
CVSS Score / Version7.8 (High) / CVSS v3.1
Updated2026-08-21
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS Proseattack vector is local; attack complexity is low; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Classified asCWE-78 (Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection'))

What to Know

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. (NVD)

References

SourceReference
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-16524
CVEhttps://www.cve.org/CVERecord?id=CVE-2026-16524