Command Injection Vulnerability in PCP's Linux Sockets PMDA
CVE-2026-16524

7.8HIGH

Key Information:

Vendor

Red Hat
Status
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Vendor
CVE Published:
30 July 2026

What is CVE-2026-16524?

A command injection vulnerability exists in the linux_sockets PMDA of Performance Co-Pilot (PCP). This flaw allows attackers to inject malicious shell metacharacters via the network.persocket.filter metric, which bypasses input validation. As a result, attackers may execute arbitrary commands with the privileges of the PMDA user when the metrics refresh occurs, potentially compromising the system's integrity and security.

References

https://access.redhat.com/security/cve/CVE-2026-16524
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2506023
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Red Hat would like to thank Francisco Alisson Bezerra (TIM Security Red Team Research, TIM S.p.A), Lucas Gabriel Alves (TIM Security Red Team Research, TIM S.p.A), and Massimiliano Brolli (TIM Security Red Team Research, TIM S.p.A) for reporting this issue.
.