CVE-2021-31828
Estado: ModificadaAlta (7.1)—
An SSRF issue in Open Distro for Elasticsearch (ODFE) before 1.13.1.0 allows an existing privileged user to enumerate listening services or interact with configured resources via HTTP requests exceeding the Alerting plugin's intended scope.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
- Puntuación base: 7.1
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.89%
- Percentil entre todas las CVEs puntuadas: 58
- Fecha de la puntuación: 7/10/2026
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).
Tecnologías afectadas (1)
CWE
- CWE-918
Referencias
- https://github.com/opendistro-for-elasticsearch/alerting/pull/353
- https://opendistro.github.io/for-elasticsearch-docs/version-history/
- https://rotem-bar.com/ssrf-in-open-distro-for-elasticsearch-cve-2021-31828
- https://github.com/opendistro-for-elasticsearch/alerting/pull/353
- https://opendistro.github.io/for-elasticsearch-docs/version-history/
- https://rotem-bar.com/ssrf-in-open-distro-for-elasticsearch-cve-2021-31828
JSON original (NVD)
Mostrar
{
"id": "CVE-2021-31828",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 5.5,
"accessVector": "NETWORK",
"vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:N",
"authentication": "SINGLE",
"integrityImpact": "PARTIAL",
"accessComplexity": "LOW",
"availabilityImpact": "NONE",
"confidentialityImpact": "PARTIAL"
},
"acInsufInfo": false,
"impactScore": 4.9,
"baseSeverity": "MEDIUM",
"obtainAllPrivilege": false,
"exploitabilityScore": 8,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.1,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "LOW",
"confidentialityImpact": "LOW"
},
"impactScore": 4.2,
"exploitabilityScore": 2.8
}
]
},
"affected": [
{
"source": "cve@mitre.org",
"affectedData": [
{
"vendor": "n/a",
"product": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
]
}
],
"published": "2021-05-06T19:15:07.630",
"references": [
{
"url": "https://github.com/opendistro-for-elasticsearch/alerting/pull/353",
"tags": [
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],
"source": "cve@mitre.org"
},
{
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"tags": [
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],
"source": "cve@mitre.org"
},
{
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"tags": [
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],
"source": "cve@mitre.org"
},
{
"url": "https://github.com/opendistro-for-elasticsearch/alerting/pull/353",
"tags": [
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],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://opendistro.github.io/for-elasticsearch-docs/version-history/",
"tags": [
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"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://rotem-bar.com/ssrf-in-open-distro-for-elasticsearch-cve-2021-31828",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-918"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "An SSRF issue in Open Distro for Elasticsearch (ODFE) before 1.13.1.0 allows an existing privileged user to enumerate listening services or interact with configured resources via HTTP requests exceeding the Alerting plugin's intended scope."
},
{
"lang": "es",
"value": "Un problema de SSRF en Open Distro para Elasticsearch (ODFE) versiones anteriores a 1.13.1.0, permite a un usuario privilegiado existente enumerar los servicios de escucha o interactuar con los recursos configurados por medio de peticiones HTTP que exceden el alcance previsto del plugin Alerting"
}
],
"lastModified": "2026-06-17T03:52:18.380",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:amazon:open_distro:*:*:*:*:*:elasticsearch:*:*",
"vulnerable": true,
"matchCriteriaId": "9284C1A8-7EB9-4B7B-8718-06BC09EED4C4",
"versionEndExcluding": "1.13.1.0"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "cve@mitre.org"
}