CVE-2026-34972
OpenFGA is a high-performance and flexible authorization/permission engine built for developers and inspired by Google Zanzibar. From 1.8.0 to 1.13.1, under specific conditions, BatchCheck calls with multiple checks sent for the same object, relation, and user combination can result in improper policy enforcement. This vulnerability is fixed in 1.14.0.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 8.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.27%
- Percentil entre todas las CVEs puntuadas: 18
- 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
T1210Exploitation of Remote Serviceslateral movement75 % - Impacto principal
T1078Valid Accountsstealth · persistence · privilege escalation · initial access70 % - Impacto secundario
T1565.002Transmitted Data Manipulationimpact65 %
Vector CVSS con AV:N y PR:L indica acceso remoto con privilegios (requiere autenticación). Vulnerabilidad en motor de autorización permite eludir políticas de acceso (T1078) y potencialmente modificar decisiones de control de acceso (T1565.002).
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)
CWE
- CWE-863
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-34972",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-34972",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-04-07T14:01:13.438567Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "security-advisories@github.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 5,
"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L",
"integrityImpact": "LOW",
"userInteraction": "NONE",
"attackComplexity": "HIGH",
"availabilityImpact": "LOW",
"privilegesRequired": "LOW",
"confidentialityImpact": "LOW"
},
"impactScore": 3.4,
"exploitabilityScore": 1.6
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 8.8,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 2.8
}
]
},
"affected": [
{
"source": "security-advisories@github.com",
"affectedData": [
{
"vendor": "openfga",
"product": "openfga",
"versions": [
{
"status": "affected",
"version": ">= 1.8.0, < 1.14.0"
}
]
}
]
}
],
"published": "2026-04-06T21:16:19.997",
"references": [
{
"url": "https://github.com/openfga/openfga/security/advisories/GHSA-jwvj-g8pc-cx45",
"tags": [
"Vendor Advisory"
],
"source": "security-advisories@github.com"
}
],
"vulnStatus": "Analyzed",
"weaknesses": [
{
"type": "Secondary",
"source": "security-advisories@github.com",
"description": [
{
"lang": "en",
"value": "CWE-863"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "OpenFGA is a high-performance and flexible authorization/permission engine built for developers and inspired by Google Zanzibar. From 1.8.0 to 1.13.1, under specific conditions, BatchCheck calls with multiple checks sent for the same object, relation, and user combination can result in improper policy enforcement. This vulnerability is fixed in 1.14.0."
},
{
"lang": "es",
"value": "OpenFGA es un motor de autorización/permisos de alto rendimiento y flexible, diseñado para desarrolladores e inspirado en Google Zanzibar. Desde la versión 1.8.0 hasta la 1.13.1, bajo condiciones específicas, las llamadas a BatchCheck con múltiples verificaciones enviadas para la misma combinación de objeto, relación y usuario pueden resultar en una aplicación de política incorrecta. Esta vulnerabilidad se corrige en la versión 1.14.0."
}
],
"lastModified": "2026-07-24T21:10:00.143",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:openfga:helm_charts:*:*:*:*:*:openfga:*:*",
"vulnerable": true,
"matchCriteriaId": "EABAAAEF-53E1-4ED5-9680-9748EF76A60A",
"versionEndExcluding": "0.2.62",
"versionStartIncluding": "0.2.16"
},
{
"criteria": "cpe:2.3:a:openfga:openfga:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "9D29D1A0-093C-4775-9409-BED9C6D4CE7E",
"versionEndExcluding": "1.14.0",
"versionStartIncluding": "1.8.0"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "security-advisories@github.com"
}