CVE-2026-18378
Full vulnerability record from the local CVENow database.
Description
A flaw was found in koku-metrics-operator. The operator's CostManagementMetricsConfig custom resource allows user able to edit the CR to specify an arbitrary upload URL. When authentication.type is set to token (the default), the cluster-global Red Hat Cloud pull-secret bearer token is attached to HTTP requests sent to this user-controlled URL, allowing the attacker to obtain the token.
Severity
MEDIUM
CVSS score
6.8
(v3.1)
Vulnerability status
Modified
Source identifier
Published
2026-07-30 12:17:27.553000
Last modified
2026-10-23 22:10:00.160000
View original CVE JSON
{
"id": "CVE-2026-18378",
"sourceIdentifier": "[email protected]",
"published": "2026-07-30T12:17:27.553",
"lastModified": "2026-10-23T22:10:00.160",
"vulnStatus": "Modified",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in koku-metrics-operator. The operator's CostManagementMetricsConfig custom resource allows user able to edit the CR to specify an arbitrary upload URL. When authentication.type is set to token (the default), the cluster-global Red Hat Cloud pull-secret bearer token is attached to HTTP requests sent to this user-controlled URL, allowing the attacker to obtain the token."
},
{
"lang": "es",
"value": "Se encontró una vulnerabilidad en koku-metrics-operator. El recurso personalizado CostManagementMetricsConfig del operador permite al usuario con capacidad de editar el CR especificar una URL de carga arbitraria. Cuando autenticación.type se establece en token (el valor predeterminado), el token portador pull-secret de Red Hat Cloud global del clúster se adjunta a las solicitudes HTTP enviadas a esta URL controlada por el usuario, permitiendo al atacante obtener el token."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "Red Hat",
"product": "Cost Management 4",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "costmanagement/costmanagement-metrics-rhel9-operator",
"cpes": [
"cpe:/a:redhat:cost_management:4::el9"
],
"versions": [
{
"version": "1790844333",
"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:C/C:H/I:L/A:N",
"baseScore": 7.6,
"baseSeverity": "HIGH",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "HIGH",
"userInteraction": "NONE",
"scope": "CHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "LOW",
"availabilityImpact": "NONE"
},
"exploitabilityScore": 2.3,
"impactScore": 4.7
},
{
"source": "[email protected]",
"type": "Primary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N",
"baseScore": 6.8,
"baseSeverity": "MEDIUM",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "HIGH",
"userInteraction": "NONE",
"scope": "CHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"availabilityImpact": "NONE"
},
"exploitabilityScore": 2.3,
"impactScore": 4.0
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-07-31T22:48:52.882288Z",
"id": "CVE-2026-18378",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-918"
}
]
}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:a:redhat:cost_management_metrics_operator:-:*:*:*:*:openshift:*:*",
"matchCriteriaId": "986E843B-6166-4A3A-906F-C841852C9CE6"
}
]
}
]
}
],
"references": [
{
"url": "https://access.redhat.com/errata/RHSA-2026:81201",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/security/cve/CVE-2026-18378",
"source": "[email protected]",
"tags": [
"Vendor Advisory"
]
},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2509249",
"source": "[email protected]",
"tags": [
"Issue Tracking",
"Mitigation",
"Vendor Advisory"
]
}
]
}