{"id":"CVE-2022-39271","state":"PUBLISHED","title":"Traefik HTTP/2 connections management could cause a denial of service","description":"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.","publishedAt":"2022-10-11T00:00:00.000Z","updatedAt":"2025-04-23T16:51:43.774Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["traefik traefik"],"affected":[{"vendor":"traefik","product":"traefik","versions":[{"version":" < 2.8.8","status":"affected"},{"version":">= 2.9.0-rc1, < 2.9.0-rc5","status":"affected"}]}],"references":["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"],"weaknesses":["CWE-400"],"ingestedAt":"2026-10-29T19:50:29.496Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/39xxx/CVE-2022-39271.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2022-39271","state":"PUBLISHED","datePublished":"2022-10-11T00:00:00.000Z","dateUpdated":"2025-04-23T16:51:43.774Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2022-09-02T00:00:00.000Z"},"containers":{"cna":{"title":"Traefik HTTP/2 connections management could cause a denial of service","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."}],"affected":[{"vendor":"traefik","product":"traefik","versions":[{"version":" < 2.8.8","status":"affected"},{"version":">= 2.9.0-rc1, < 2.9.0-rc5","status":"affected"}]}],"references":[{"url":"https://github.com/traefik/traefik/security/advisories/GHSA-c6hx-pjc3-7fqr"},{"url":"https://github.com/traefik/traefik/releases/tag/v2.8.8"},{"url":"https://github.com/traefik/traefik/releases/tag/v2.9.0-rc5"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-400","type":"CWE","lang":"en","description":"CWE-400: Uncontrolled Resource Consumption"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2022-10-11T00:00:00.000Z"},"source":{"advisory":"GHSA-c6hx-pjc3-7fqr","discovery":"UNKNOWN"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://github.com/traefik/traefik/security/advisories/GHSA-c6hx-pjc3-7fqr","tags":["x_transferred"]},{"url":"https://github.com/traefik/traefik/releases/tag/v2.8.8","tags":["x_transferred"]},{"url":"https://github.com/traefik/traefik/releases/tag/v2.9.0-rc5","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T12:00:43.598Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-04-23T15:50:09.653301Z","id":"CVE-2022-39271","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-04-23T16:51:43.774Z"}}]}}}