An unauthenticated remote attacker can bypass access controls by sending crafted requests to the PCP pmproxy /store endpoint. (CVE-2026-16527)
CVE-2026-16527 is a vulnerability in the PCP pmproxy /store endpoint that allows an unauthenticated remote attacker to bypass access controls by sending crafted requests. This can enable the attacker to overwrite any PMDA metric, potentially leading to arbitrary code execution and full system takeover. The vulnerability has a high severity rating. No affected versions or patch information are explicitly provided in the available data.
AI Analysis
Technical Summary
An unauthenticated remote attacker can bypass access controls on the PCP pmproxy /store endpoint by sending specially crafted requests. This bypass enables overwriting of any PMDA metric, which can result in arbitrary code execution and system compromise. The vulnerability is tracked as CVE-2026-16527 and has a CVSS 3.1 vector indicating network attack vector, low attack complexity, no privileges required, no user interaction, and impacts confidentiality, integrity, and availability. No patch or remediation details are provided in the vendor advisory excerpt.
Potential Impact
Successful exploitation allows an unauthenticated attacker to bypass access controls and overwrite PMDA metrics, leading to arbitrary code execution and complete system takeover. This represents a critical compromise of system integrity and availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the Red Hat advisory at https://access.redhat.com/security/cve/CVE-2026-16527 for current remediation guidance. Until an official fix is available, restrict network access to the PCP pmproxy /store endpoint and monitor for suspicious activity related to this service.
An unauthenticated remote attacker can bypass access controls by sending crafted requests to the PCP pmproxy /store endpoint. (CVE-2026-16527)
Description
CVE-2026-16527 is a vulnerability in the PCP pmproxy /store endpoint that allows an unauthenticated remote attacker to bypass access controls by sending crafted requests. This can enable the attacker to overwrite any PMDA metric, potentially leading to arbitrary code execution and full system takeover. The vulnerability has a high severity rating. No affected versions or patch information are explicitly provided in the available data.
CVSS v3.1
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
An unauthenticated remote attacker can bypass access controls on the PCP pmproxy /store endpoint by sending specially crafted requests. This bypass enables overwriting of any PMDA metric, which can result in arbitrary code execution and system compromise. The vulnerability is tracked as CVE-2026-16527 and has a CVSS 3.1 vector indicating network attack vector, low attack complexity, no privileges required, no user interaction, and impacts confidentiality, integrity, and availability. No patch or remediation details are provided in the vendor advisory excerpt.
Potential Impact
Successful exploitation allows an unauthenticated attacker to bypass access controls and overwrite PMDA metrics, leading to arbitrary code execution and complete system takeover. This represents a critical compromise of system integrity and availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the Red Hat advisory at https://access.redhat.com/security/cve/CVE-2026-16527 for current remediation guidance. Until an official fix is available, restrict network access to the PCP pmproxy /store endpoint and monitor for suspicious activity related to this service.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-cf63-g57m-mc5r
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-16527"]
- Ecosystems
- []
- Database Specific Severity
- HIGH
- Cvss Version
- 3.1
Threat ID: 6a6b72c69c2644c7f8475531
Added to database: 07/30/2026, 15:50:30 UTC
Last enriched: 07/30/2026, 19:38:47 UTC
Last updated: 07/31/2026, 02:52:23 UTC
Views: 2
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