CVE-2026-75886
A flaw was found in openshift/console. An unauthenticated remote attacker can exploit a misconfiguration in the CatalogdHandler, which lacks proper authentication, and the forwarding of the `openshift-session-token` cookie. This allows the attacker to send requests to the in-cluster catalogd service, leading to the disclosure of the internal operator-catalog index and providing a relay into the openshift-catalogd namespace.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- Puntuación base: 7.2
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.33%
- Percentil entre todas las CVEs puntuadas: 24
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1190Exploit Public-Facing Applicationinitial access95 % - Impacto principal
T1552.007Container APIcredential access85 % - Impacto secundario
T1090.001Internal Proxycommand and control80 %
Aplicación web expuesta (console) sin autenticación permite acceso no autorizado (AV:N/PR:N). Divulga índice interno y actúa como relé (SSRF/proxy) hacia servicio catalogd en cluster.
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (2)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
CWE
- CWE-441
Referencias
- https://access.redhat.com/errata/RHSA-2026:70587
- https://access.redhat.com/errata/RHSA-2026:70617
- https://access.redhat.com/errata/RHSA-2026:71447
- https://access.redhat.com/errata/RHSA-2026:71450
- https://access.redhat.com/errata/RHSA-2026:71453
- https://access.redhat.com/errata/RHSA-2026:71454
- https://access.redhat.com/security/cve/CVE-2026-75886
- https://bugzilla.redhat.com/show_bug.cgi?id=2517886
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-75886",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-75886",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-09-24T13:53:58.349525Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "secalert@redhat.com",
"cvssData": {
"scope": "CHANGED",
"version": "3.1",
"baseScore": 7.2,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N",
"integrityImpact": "LOW",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "NONE",
"confidentialityImpact": "LOW"
},
"impactScore": 2.7,
"exploitabilityScore": 3.9
}
]
},
"affected": [
{
"source": "secalert@redhat.com",
"affectedData": [
{
"cpes": [
"cpe:/a:redhat:openshift:4.17::el9"
],
"vendor": "Red Hat",
"product": "Red Hat OpenShift Container Platform 4.17",
"versions": [
{
"status": "unaffected",
"version": "1789939565",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "openshift4/ose-console-rhel9",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:openshift:4.18::el9"
],
"vendor": "Red Hat",
"product": "Red Hat OpenShift Container Platform 4.18",
"versions": [
{
"status": "unaffected",
"version": "1789904865",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "openshift4/ose-console-rhel9",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:openshift:4.19::el9"
],
"vendor": "Red Hat",
"product": "Red Hat OpenShift Container Platform 4.19",
"versions": [
{
"status": "unaffected",
"version": "1790095950",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "openshift4/ose-console-rhel9",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:openshift:4.20::el9"
],
"vendor": "Red Hat",
"product": "Red Hat OpenShift Container Platform 4.20",
"versions": [
{
"status": "unaffected",
"version": "1790112153",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "openshift4/ose-console-rhel9",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:openshift:4.21::el9"
],
"vendor": "Red Hat",
"product": "Red Hat OpenShift Container Platform 4.21",
"versions": [
{
"status": "unaffected",
"version": "1790142788",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "openshift4/ose-console-rhel9",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:openshift:4.22::el9"
],
"vendor": "Red Hat",
"product": "Red Hat OpenShift Container Platform 4.22",
"versions": [
{
"status": "unaffected",
"version": "1790130905",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "openshift4/ose-console-rhel9",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:openshift:4"
],
"vendor": "Red Hat",
"product": "Red Hat OpenShift Container Platform 4",
"packageName": "openshift4/ose-console",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "unaffected"
}
]
}
],
"published": "2026-09-23T21:17:02.683",
"references": [
{
"url": "https://access.redhat.com/errata/RHSA-2026:70587",
"source": "secalert@redhat.com"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:70617",
"source": "secalert@redhat.com"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:71447",
"source": "secalert@redhat.com"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:71450",
"source": "secalert@redhat.com"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:71453",
"source": "secalert@redhat.com"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:71454",
"source": "secalert@redhat.com"
},
{
"url": "https://access.redhat.com/security/cve/CVE-2026-75886",
"source": "secalert@redhat.com"
},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2517886",
"source": "secalert@redhat.com"
}
],
"vulnStatus": "Awaiting Analysis",
"weaknesses": [
{
"type": "Secondary",
"source": "secalert@redhat.com",
"description": [
{
"lang": "en",
"value": "CWE-441"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in openshift/console. An unauthenticated remote attacker can exploit a misconfiguration in the CatalogdHandler, which lacks proper authentication, and the forwarding of the `openshift-session-token` cookie. This allows the attacker to send requests to the in-cluster catalogd service, leading to the disclosure of the internal operator-catalog index and providing a relay into the openshift-catalogd namespace."
}
],
"lastModified": "2026-10-01T17:17:31.437",
"sourceIdentifier": "secalert@redhat.com"
}