CVE-2026-16527

Published: Jul 30, 2026Modified: Aug 21, 2026

7.3

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Exploitability: 3.9 / Impact: 3.4

Source: secalert@redhat.com (Secondary)

Description

An unauthenticated remote attacker can bypass access controls by sending crafted requests to the PCP pmproxy /store endpoint. This allows the attacker to overwrite any PMDA metric, leading to arbitrary code execution and system takeover.

Related CWEs

CWE-284

Improper Access Control

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

CWE-306

Missing Authentication for Critical Function

The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

References (5)

https://access.redhat.com/errata/RHSA-2026:55560

Source: secalert@redhat.com

https://access.redhat.com/errata/RHSA-2026:55617

Source: secalert@redhat.com

https://access.redhat.com/errata/RHSA-2026:55740

Source: secalert@redhat.com

https://access.redhat.com/security/cve/CVE-2026-16527

Source: secalert@redhat.com

https://bugzilla.redhat.com/show_bug.cgi?id=2506031

Source: secalert@redhat.com

Timeline

No history available yet.