CVE-2026-16527
Full vulnerability record from the local CVENow database.
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.
Severity
HIGH
CVSS score
7.3
(v3.1)
Vulnerability status
Awaiting Analysis
Source identifier
Published
2026-07-30 06:25:02.813000
Last modified
2026-11-04 16:17:50.853000
View original CVE JSON
{
"id": "CVE-2026-16527",
"sourceIdentifier": "[email protected]",
"published": "2026-07-30T06:25:02.813",
"lastModified": "2026-11-04T16:17:50.853",
"vulnStatus": "Awaiting Analysis",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "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."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 10",
"defaultStatus": "affected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "pcp",
"cpes": [
"cpe:/o:redhat:enterprise_linux:10.2"
],
"versions": [
{
"version": "0:7.0.3-5.el10_2",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
"defaultStatus": "affected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "pcp",
"cpes": [
"cpe:/o:redhat:enterprise_linux_eus:10.0"
],
"versions": [
{
"version": "0:6.3.7-1.el10_0.1",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 8",
"defaultStatus": "affected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "pcp",
"cpes": [
"cpe:/a:redhat:enterprise_linux:8::appstream"
],
"versions": [
{
"version": "0:5.3.7-22.el8_10.5",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
"defaultStatus": "affected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "pcp",
"cpes": [
"cpe:/a:redhat:rhel_aus:8.4::appstream",
"cpe:/a:redhat:rhel_eus_long_life:8.4::appstream"
],
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{
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"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
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"product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
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"packageName": "pcp",
"cpes": [
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"cpe:/a:redhat:rhel_eus_long_life:8.4::appstream"
],
"versions": [
{
"version": "0:5.2.5-8.el8_4.1",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
"defaultStatus": "affected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "pcp",
"cpes": [
"cpe:/a:redhat:rhel_aus:8.6::appstream",
"cpe:/a:redhat:rhel_eus_long_life:8.6::appstream"
],
"versions": [
{
"version": "0:5.3.5-10.el8_6.1",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On",
"defaultStatus": "affected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "pcp",
"cpes": [
"cpe:/a:redhat:rhel_aus:8.6::appstream",
"cpe:/a:redhat:rhel_eus_long_life:8.6::appstream"
],
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{
"version": "0:5.3.5-10.el8_6.1",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
"defaultStatus": "affected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "pcp",
"cpes": [
"cpe:/a:redhat:rhel_e4s:8.8::appstream",
"cpe:/a:redhat:rhel_tus:8.8::appstream"
],
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{
"version": "0:5.3.7-19.el8_8.1",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions",
"defaultStatus": "affected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "pcp",
"cpes": [
"cpe:/a:redhat:rhel_e4s:8.8::appstream",
"cpe:/a:redhat:rhel_tus:8.8::appstream"
],
"versions": [
{
"version": "0:5.3.7-19.el8_8.1",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 9",
"defaultStatus": "affected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "pcp",
"cpes": [
"cpe:/a:redhat:enterprise_linux:9::appstream"
],
"versions": [
{
"version": "0:6.3.7-8.el9_8.4",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions",
"defaultStatus": "affected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "pcp",
"cpes": [
"cpe:/a:redhat:rhel_e4s:9.2::appstream"
],
"versions": [
{
"version": "0:6.0.1-8.el9_2.2",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions",
"defaultStatus": "affected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "pcp",
"cpes": [
"cpe:/a:redhat:rhel_e4s:9.4::appstream"
],
"versions": [
{
"version": "0:6.2.0-5.el9_4.2",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 9.6 Extended Update Support",
"defaultStatus": "affected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "pcp",
"cpes": [
"cpe:/a:redhat:rhel_eus:9.6::appstream"
],
"versions": [
{
"version": "0:6.3.7-1.el9_6.1",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 6",
"defaultStatus": "unknown",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "pcp",
"cpes": [
"cpe:/o:redhat:enterprise_linux:6"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 7",
"defaultStatus": "unaffected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "pcp",
"cpes": [
"cpe:/o:redhat:enterprise_linux:7"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift Container Platform 4",
"defaultStatus": "unaffected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "openshift/ose-rhel-coreos-9",
"cpes": [
"cpe:/a:redhat:openshift:4"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift Container Platform 5",
"defaultStatus": "unaffected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "openshift/ose-rhel-coreos-9",
"cpes": [
"cpe:/a:redhat:openshift:5"
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
"baseScore": 7.3,
"baseSeverity": "HIGH",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"availabilityImpact": "LOW"
},
"exploitabilityScore": 3.9,
"impactScore": 3.4
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-07-31T22:41:09.261852Z",
"id": "CVE-2026-16527",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-306"
}
]
},
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-284"
}
]
}
],
"references": [
{
"url": "https://access.redhat.com/errata/RHSA-2026:55560",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:55617",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:55740",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:72272",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:72273",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:72593",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:72594",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:73767",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:74612",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:74613",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/security/cve/CVE-2026-16527",
"source": "[email protected]"
},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2506031",
"source": "[email protected]"
}
]
}