Access Control Bypass Vulnerability in PCP Product by Red Hat
CVE-2026-16527

7.3HIGH

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-2026-16527?

An unauthenticated remote attacker can exploit a vulnerability in the PCP pmproxy /store endpoint by sending specially crafted requests. This exploit allows the attacker to bypass existing access controls, enabling them to overwrite any PMDA metric. The result is arbitrary code execution, which can lead to a complete system takeover, posing significant security risks for affected users.

References

https://access.redhat.com/security/cve/CVE-2026-16527
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2506031
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
7.3
Severity:
HIGH
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.