Skip to main content

Performance Co-Pilot CVE-2026-16527

| EUVDEUVD-2026-50976 HIGH
Improper Access Control (CWE-284)
2026-07-30 redhat GHSA-cf63-g57m-mc5r
7.3
CVSS 3.1 · Vendor: redhat
Share

Severity by source

Vendor (redhat) PRIMARY
7.3 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
vuln.today AI
7.3 HIGH

Unauthenticated low-complexity network access (AV:N/AC:L/PR:N/UI:N) is clear; I retain the vendor's Low impacts because the RCE/takeover claim is unconfirmed and likely constrained to the PMDA service context rather than full-High host compromise.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
SUSE
7.5 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Red Hat
7.3 HIGH
qualitative

Primary rating from Vendor (redhat).

CVSS VectorVendor: redhat

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

Lifecycle Timeline

2
Analysis Generated
Jul 30, 2026 - 08:31 vuln.today
CVE Published
Jul 30, 2026 - 05:30 nvd
HIGH 7.3

DescriptionCVE.org

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.

AnalysisAI

Remote unauthenticated access-control bypass in the Performance Co-Pilot (PCP) pmproxy component lets attackers reach the /store endpoint and overwrite arbitrary PMDA (Performance Metrics Domain Agent) metric values, which the reporter (Red Hat) states can escalate to arbitrary code execution and full system takeover. The flaw affects PCP as shipped across Red Hat Enterprise Linux 6 through 10 and OpenShift Container Platform 4. …

Unlock full vulnerability intelligence

  • Risk assessment & exploitation conditions
  • Attack chain visualization
  • Remediation with exact patch versions
  • Threat intelligence from 22 sources
  • Personal watchlist & email alerts

Free forever · No credit card required

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Locate exposed pmproxy port (44322)
Delivery
Send crafted request to /store endpoint
Exploit
Bypass access control checks
Execution
Overwrite target PMDA metric value
Persist
Trigger code execution in agent context
Impact
System takeover

Vulnerability AssessmentAI

Exploitation Exploitation requires network reachability to the PCP pmproxy service and its /store endpoint being enabled/exposed (pmproxy typically listens on TCP 44322). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The provided CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L = 7.3) describes a trivially reachable, unauthenticated, low-complexity network attack, which is a genuine priority signal. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker who can reach a target's pmproxy port sends crafted unauthenticated HTTP requests to the /store endpoint, bypassing access control to overwrite a PMDA metric that a privileged consumer or the agent itself acts upon. Per the reporter this metric overwrite is escalated into arbitrary code execution, yielding control of the monitoring service context or host. …
Remediation Apply the Red Hat pcp/pmproxy security update for your RHEL or OpenShift release once available; no exact fixed version was provided in the input, so verify the patched package via the Red Hat advisory (https://access.redhat.com/security/cve/CVE-2026-16527) and Bugzilla 2506031. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, conduct an inventory of all systems running PCP pmproxy across RHEL 6-10 and OpenShift Container Platform 4 and identify instances exposed to untrusted networks. …

Sign in for detailed remediation steps and compensating controls.

Threat intelligence, references, and detailed analysis are available after sign-in.

CVE-2026-4631 CRITICAL POC
9.8 Apr 07

Remote code execution in Cockpit's web interface allows unauthenticated attackers to execute arbitrary commands on the h

CVE-2026-4480 CRITICAL POC
9.0 May 26

Remote code execution in Samba's printing subsystem allows remote attackers to inject arbitrary shell commands via craft

CVE-2026-14544 CRITICAL
9.8 Jul 03

Remote code execution and privilege escalation in HPLIP (HP Linux Imaging and Printing) affects the hpcups print filter

CVE-2026-28369 CRITICAL
9.1 Mar 27

HTTP request smuggling in Undertow (the embedded web server underpinning JBoss EAP, Red Hat Data Grid, and Apache Camel

CVE-2026-28368 CRITICAL
9.1 Mar 27

HTTP request smuggling in Red Hat Undertow allows remote unauthenticated attackers to bypass front-end security controls

CVE-2026-33845 CRITICAL
9.1 Apr 30

Out-of-bounds read in the GnuTLS DTLS handshake reassembly logic lets remote unauthenticated attackers trigger an intege

CVE-2026-28367 CRITICAL
9.1 Mar 27

HTTP request smuggling in Undertow allows remote unauthenticated attackers to send `\r\r\r` as a header block terminator

CVE-2026-16526 HIGH
8.8 Jul 30

Local privilege escalation in Performance Co-Pilot (PCP) on Red Hat Enterprise Linux 6 through 10 and OpenShift Containe

CVE-2026-11610 HIGH
8.8 Jul 07

Denial of service in Red Hat / 389 Directory Server (389-ds-base, versions since ~1.3.2/2013) allows an authenticated LD

CVE-2026-14474 HIGH
8.8 Jul 07

Local-to-domain-wide root privilege escalation in SSSD's LDAP sudo provider allows an authenticated LDAP directory user

CVE-2026-52720 HIGH
8.8 Jun 15

Heap buffer overflow in GStreamer's librfb (RFB/VNC client) allows a malicious VNC server to corrupt heap memory on a co

CVE-2026-59851 HIGH
8.8 Jul 21

Privilege escalation via authentication bypass in libssh affects servers that enable GSSAPIKeyExchange, where the gssapi

Vendor StatusVendor

SUSE

Severity: Critical
Product Status
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS Affected
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS Affected
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS Affected
SUSE Linux Enterprise Module for Development Tools 15 SP7 Affected

Share

CVE-2026-16527 vulnerability details – vuln.today

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy