CVE-2022-39271
Estado: ModificadaAlta (7.5)—
Traefik (pronounced traffic) is a modern HTTP reverse proxy and load balancer that assists in deploying microservices. There is a potential vulnerability in Traefik managing HTTP/2 connections. A closing HTTP/2 server connection could hang forever because of a subsequent fatal error. This failure mode could be exploited to cause a denial of service. There has been a patch released in versions 2.8.8 and 2.9.0-rc5. There are currently no known workarounds.
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: 1.12%
- Percentil entre todas las CVEs puntuadas: 65
- 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-400
- CWE-755
Referencias
- https://github.com/traefik/traefik/releases/tag/v2.8.8
- https://github.com/traefik/traefik/releases/tag/v2.9.0-rc5
- https://github.com/traefik/traefik/security/advisories/GHSA-c6hx-pjc3-7fqr
- https://github.com/traefik/traefik/releases/tag/v2.8.8
- https://github.com/traefik/traefik/releases/tag/v2.9.0-rc5
- https://github.com/traefik/traefik/security/advisories/GHSA-c6hx-pjc3-7fqr
JSON original (NVD)
Mostrar
{
"id": "CVE-2022-39271",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2022-39271",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2025-04-23T15:50:09.653301Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "security-advisories@github.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": "Primary",
"source": "nvd@nist.gov",
"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-advisories@github.com",
"affectedData": [
{
"vendor": "traefik",
"product": "traefik",
"versions": [
{
"status": "affected",
"version": " < 2.8.8"
},
{
"status": "affected",
"version": ">= 2.9.0-rc1, < 2.9.0-rc5"
}
]
}
]
}
],
"published": "2022-10-11T14:15:09.883",
"references": [
{
"url": "https://github.com/traefik/traefik/releases/tag/v2.8.8",
"tags": [
"Release Notes",
"Third Party Advisory"
],
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/traefik/traefik/releases/tag/v2.9.0-rc5",
"tags": [
"Release Notes",
"Third Party Advisory"
],
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/traefik/traefik/security/advisories/GHSA-c6hx-pjc3-7fqr",
"tags": [
"Patch",
"Third Party Advisory"
],
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/traefik/traefik/releases/tag/v2.8.8",
"tags": [
"Release Notes",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://github.com/traefik/traefik/releases/tag/v2.9.0-rc5",
"tags": [
"Release Notes",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://github.com/traefik/traefik/security/advisories/GHSA-c6hx-pjc3-7fqr",
"tags": [
"Patch",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Secondary",
"source": "security-advisories@github.com",
"description": [
{
"lang": "en",
"value": "CWE-400"
}
]
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-755"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Traefik (pronounced traffic) is a modern HTTP reverse proxy and load balancer that assists in deploying microservices. There is a potential vulnerability in Traefik managing HTTP/2 connections. A closing HTTP/2 server connection could hang forever because of a subsequent fatal error. This failure mode could be exploited to cause a denial of service. There has been a patch released in versions 2.8.8 and 2.9.0-rc5. There are currently no known workarounds."
},
{
"lang": "es",
"value": "Traefik (pronunciado tráfico) es un moderno proxy inverso HTTP y equilibrador de carga que ayuda a desplegar microservicios. Se presenta una vulnerabilidad potencial en Traefik al administrar las conexiones HTTP/2. Una conexión de servidor HTTP/2 que es cerrada podría colgarse para siempre debido a un error fatal posterior. Este modo de fallo podría ser explotado para causar una denegación de servicio. Ha sido publicado un parche en versiones 2.8.8 y 2.9.0-rc5. Actualmente no se presentan mitigaciones conocidas"
}
],
"lastModified": "2026-06-17T04:58:02.643",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "BC4B4129-B55E-49A3-AC70-58189BF6F4E9",
"versionEndExcluding": "2.8.8"
},
{
"criteria": "cpe:2.3:a:traefik:traefik:2.9.0:rc1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "FCCE16AF-C4D4-4214-BD57-5F45CA12B84B"
},
{
"criteria": "cpe:2.3:a:traefik:traefik:2.9.0:rc2:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B462AF00-590B-400C-B219-685BBC1E16AB"
},
{
"criteria": "cpe:2.3:a:traefik:traefik:2.9.0:rc3:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "45A346C6-2494-4C72-A606-746554E933B5"
},
{
"criteria": "cpe:2.3:a:traefik:traefik:2.9.0:rc4:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "BD36BBFB-A14F-4B93-95B6-83FC5C67F4B9"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "security-advisories@github.com"
}