CVE-2026-18255
Full vulnerability record from the local CVENow database.
Description
A flaw was found in Quay. A user configured in GLOBAL_READONLY_SUPER_USERS is able to view robot account tokens for repositories they are not a member of, allowing an attacker with read-only superuser privileges to impersonate any robot account.
Severity
HIGH
CVSS score
7.2
(v3.1)
Vulnerability status
Awaiting Analysis
Source identifier
Published
2026-07-29 17:16:51.393000
Last modified
2026-10-24 13:10:00.147000
View original CVE JSON
{
"id": "CVE-2026-18255",
"sourceIdentifier": "[email protected]",
"published": "2026-07-29T17:16:51.393",
"lastModified": "2026-10-24T13:10:00.147",
"vulnStatus": "Awaiting Analysis",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in Quay. A user configured in GLOBAL_READONLY_SUPER_USERS is able to view robot account tokens for repositories they are not a member of, allowing an attacker with read-only superuser privileges to impersonate any robot account."
},
{
"lang": "es",
"value": "Se encontró una falla en Quay. Un usuario configurado en GLOBAL_READONLY_SUPER_USERS puede ver los tokens de cuentas de robot para repositorios de los que no es miembro, lo que permite a un atacante con privilegios de superusuario de solo lectura suplantar cualquier cuenta de robot."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "Red Hat",
"product": "Red Hat Quay 3.10",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "quay/quay-rhel8",
"cpes": [
"cpe:/a:redhat:quay:3.10::el8"
],
"versions": [
{
"version": "1788561841",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Quay 3.12",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "quay/quay-rhel8",
"cpes": [
"cpe:/a:redhat:quay:3.12::el8"
],
"versions": [
{
"version": "1788594376",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Quay 3.14",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "quay/quay-rhel8",
"cpes": [
"cpe:/a:redhat:quay:3.14::el8"
],
"versions": [
{
"version": "1788593843",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Quay 3.15",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "quay/quay-rhel8",
"cpes": [
"cpe:/a:redhat:quay:3.15::el8"
],
"versions": [
{
"version": "1788191755",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Quay 3.16",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "quay/quay-rhel9",
"cpes": [
"cpe:/a:redhat:quay:3.16::el9"
],
"versions": [
{
"version": "1789563753",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Quay 3.17",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "quay/quay-rhel9",
"cpes": [
"cpe:/a:redhat:quay:3.17::el9"
],
"versions": [
{
"version": "1790690298",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Quay 3.18",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "quay/quay-rhel9",
"cpes": [
"cpe:/a:redhat:quay:3.18::el9"
],
"versions": [
{
"version": "1791265590",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Quay 3.9",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "quay/quay-rhel8",
"cpes": [
"cpe:/a:redhat:quay:3.9::el8"
],
"versions": [
{
"version": "1788595574",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"baseScore": 7.2,
"baseSeverity": "HIGH",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "HIGH",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 1.2,
"impactScore": 5.9
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-07-29T18:05:45.459458Z",
"id": "CVE-2026-18255",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-863"
}
]
}
],
"references": [
{
"url": "https://access.redhat.com/errata/RHSA-2026:63307",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:65514",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:66084",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:66523",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:69255",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:70267",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:74511",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:81110",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/security/cve/CVE-2026-18255",
"source": "[email protected]"
},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2508454",
"source": "[email protected]"
}
]
}