CVE-2026-27880
The OpenFeature feature toggle evaluation endpoint reads unbounded values into memory, which can cause out-of-memory crashes.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 7.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.63%
- Percentil entre todas las CVEs puntuadas: 48
- 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
T1499.002Service Exhaustion Floodimpact90 %
Vector CVSS AV:N/AC:L/PR:N/UI:N indica explotación remota sin privilegios (T1190). CWE-770 (asignación de recursos sin límite) + descripción de crash por falta de memoria (OOM) confirma Denial of Service aplicación (T1499.002).
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 (1)
CWE
- CWE-787
- CWE-125
- CWE-770
Referencias
- https://grafana.com/security/security-advisories/cve-2026-27880
- https://access.redhat.com/security/cve/CVE-2026-27880
- https://bugzilla.redhat.com/show_bug.cgi?id=2452295
- https://grafana.com/security/security-advisories/cve-2026-27880
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-27880.json
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-27880",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-27880",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-03-27T14:43:21.670196Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "security@grafana.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.5,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 3.9
},
{
"type": "Secondary",
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.5,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 3.9
}
]
},
"affected": [
{
"source": "security@grafana.com",
"affectedData": [
{
"vendor": "Grafana",
"product": "Grafana",
"versions": [
{
"status": "affected",
"version": "v12.1.0",
"lessThan": "v12.1.10",
"versionType": "semver"
},
{
"status": "affected",
"version": "v12.2.0",
"lessThan": "v12.2.8",
"versionType": "semver"
},
{
"status": "affected",
"version": "v12.3.0",
"lessThan": "v12.3.6",
"versionType": "semver"
},
{
"status": "affected",
"version": "v12.4.0",
"lessThan": "v12.4.2",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
}
]
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"affectedData": [
{
"cpes": [
"cpe:/o:redhat:enterprise_linux:10"
],
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 10",
"packageName": "grafana",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/o:redhat:enterprise_linux:8"
],
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 8",
"packageName": "grafana",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "unaffected"
},
{
"cpes": [
"cpe:/o:redhat:enterprise_linux:9"
],
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 9",
"packageName": "grafana",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "affected"
}
]
}
],
"published": "2026-03-27T15:16:51.323",
"references": [
{
"url": "https://grafana.com/security/security-advisories/cve-2026-27880",
"tags": [
"Vendor Advisory"
],
"source": "security@grafana.com"
},
{
"url": "https://access.redhat.com/security/cve/CVE-2026-27880",
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2452295",
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
},
{
"url": "https://grafana.com/security/security-advisories/cve-2026-27880",
"tags": [
"Vendor Advisory"
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
},
{
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-27880.json",
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-787"
}
]
},
{
"type": "Secondary",
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"description": [
{
"lang": "en",
"value": "CWE-125"
}
]
},
{
"type": "Secondary",
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"description": [
{
"lang": "en",
"value": "CWE-770"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "The OpenFeature feature toggle evaluation endpoint reads unbounded values into memory, which can cause out-of-memory crashes."
}
],
"lastModified": "2026-07-15T02:19:11.950",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "004E77E1-58B9-4F05-B788-5C52FBB8A25E",
"versionEndExcluding": "12.1.0"
},
{
"criteria": "cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "AE3F977F-FF94-4A15-918C-54241EC49560",
"versionEndExcluding": "12.2.0",
"versionStartIncluding": "12.1.10"
},
{
"criteria": "cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "CB499815-0B44-4BF9-AB14-F7272EF0173F",
"versionEndExcluding": "12.3.0",
"versionStartIncluding": "12.2.8"
},
{
"criteria": "cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "7F2B145A-24E0-4C0F-BF82-FFD2B1301B51",
"versionEndExcluding": "12.4.0",
"versionStartIncluding": "12.3.6"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "security@grafana.com"
}