{"id":"CVE-2026-16527","title":"An unauthenticated remote attacker can bypass access controls by sending crafted requests to the PCP pmproxy /store endpoint","summary":"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.","severity":"high","cvss":7.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","cwe":["CWE-284"],"published":"2026-07-30","updated":"2026-07-31","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-16527","references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-16527","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2506031","label":"secalert@redhat.com"}],"tags":["nvd"],"epss":0.00498,"epssPercentile":0.41741,"ingestedAt":"2026-08-01T21:14:39.653Z","slug":"CVE-2026-16527","body":"## Overview\n\nAn 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":40,"depthScoreParts":{"impact":40.2,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}