FKIE_CVE-2022-39271

Vulnerability from fkie_nvd - Published: 2022-10-11 14:15 - Updated: 2026-06-17 04:58
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
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.
References
security-advisories@github.comhttps://github.com/traefik/traefik/releases/tag/v2.8.8Release Notes, Third Party Advisory
security-advisories@github.comhttps://github.com/traefik/traefik/releases/tag/v2.9.0-rc5Release Notes, Third Party Advisory
security-advisories@github.comhttps://github.com/traefik/traefik/security/advisories/GHSA-c6hx-pjc3-7fqrPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/traefik/traefik/releases/tag/v2.8.8Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/traefik/traefik/releases/tag/v2.9.0-rc5Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/traefik/traefik/security/advisories/GHSA-c6hx-pjc3-7fqrPatch, Third Party Advisory
Impacted products
Vendor Product Version
traefik traefik *
traefik traefik 2.9.0
traefik traefik 2.9.0
traefik traefik 2.9.0
traefik traefik 2.9.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "traefik",
          "vendor": "traefik",
          "versions": [
            {
              "status": "affected",
              "version": " \u003c 2.8.8"
            },
            {
              "status": "affected",
              "version": "\u003e= 2.9.0-rc1, \u003c 2.9.0-rc5"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "BC4B4129-B55E-49A3-AC70-58189BF6F4E9",
              "versionEndExcluding": "2.8.8",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:traefik:traefik:2.9.0:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "FCCE16AF-C4D4-4214-BD57-5F45CA12B84B",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:traefik:traefik:2.9.0:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "B462AF00-590B-400C-B219-685BBC1E16AB",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:traefik:traefik:2.9.0:rc3:*:*:*:*:*:*",
              "matchCriteriaId": "45A346C6-2494-4C72-A606-746554E933B5",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:traefik:traefik:2.9.0:rc4:*:*:*:*:*:*",
              "matchCriteriaId": "BD36BBFB-A14F-4B93-95B6-83FC5C67F4B9",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "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 tr\u00e1fico) 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 conexi\u00f3n de servidor HTTP/2 que es cerrada podr\u00eda colgarse para siempre debido a un error fatal posterior. Este modo de fallo podr\u00eda ser explotado para causar una denegaci\u00f3n de servicio. Ha sido publicado un parche en versiones 2.8.8 y 2.9.0-rc5. Actualmente no se presentan mitigaciones conocidas"
    }
  ],
  "id": "CVE-2022-39271",
  "lastModified": "2026-06-17T04:58:02.643",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2022-39271",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-04-23T15:50:09.653301Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2022-10-11T14:15:09.883",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ],
      "url": "https://github.com/traefik/traefik/releases/tag/v2.8.8"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ],
      "url": "https://github.com/traefik/traefik/releases/tag/v2.9.0-rc5"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/traefik/traefik/security/advisories/GHSA-c6hx-pjc3-7fqr"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ],
      "url": "https://github.com/traefik/traefik/releases/tag/v2.8.8"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ],
      "url": "https://github.com/traefik/traefik/releases/tag/v2.9.0-rc5"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
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      "url": "https://github.com/traefik/traefik/security/advisories/GHSA-c6hx-pjc3-7fqr"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-755"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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