{"id":"CVE-2026-88012","sourceIdentifier":"security-advisories@github.com","published":"2026-09-10T16:18:08.067","lastModified":"2026-09-14T20:00:02.687","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"Traefik is an open source HTTP reverse proxy and load balancer. From 2.8.2 until 2.11.56 and 3.7.12, HTTP/3 entrypoints do not apply entryPoints..transport.respondingTimeouts.readTimeout because the timeout is enforced on a TCP connection and the HTTP/3 server has no corresponding QUIC stream deadline. An unauthenticated client can use a slow request body, trickling data indefinitely while holding a request and an upstream connection open and exhausting backends with bounded connection pools. This issue is fixed in 2.11.56 and 3.7.12."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"traefik","product":"traefik","versions":[{"version":">= 2.8.2, < 2.11.56","status":"affected"},{"version":">= 3.0.0, < 3.7.12","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","baseScore":5.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"LOW"},"exploitabilityScore":3.9,"impactScore":1.4}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-09-11T16:34:35.938612Z","id":"CVE-2026-88012","options":[{"exploitation":"none"},{"automatable":"yes"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-770"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:*","versionStartIncluding":"2.8.2","versionEndExcluding":"2.11.56","matchCriteriaId":"C3E8AE99-9C1F-4C59-8214-24CE471391FB"},{"vulnerable":true,"criteria":"cpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:*","versionStartIncluding":"3.0.0","versionEndExcluding":"3.7.12","matchCriteriaId":"DA63A7E8-A5BB-4456-965E-F493CCC6D3C5"}]}]}],"references":[{"url":"https://github.com/traefik/traefik/commit/a8d0bc425859dde7481a6c9a324e610b81d754d0","source":"security-advisories@github.com","tags":["Patch"]},{"url":"https://github.com/traefik/traefik/pull/13717","source":"security-advisories@github.com","tags":["Issue Tracking","Patch"]},{"url":"https://github.com/traefik/traefik/releases/tag/v2.11.56","source":"security-advisories@github.com","tags":["Patch","Release Notes"]},{"url":"https://github.com/traefik/traefik/releases/tag/v3.7.12","source":"security-advisories@github.com","tags":["Patch","Release Notes"]},{"url":"https://github.com/traefik/traefik/security/advisories/GHSA-7ghq-v6jf-g56c","source":"security-advisories@github.com","tags":["Patch","Vendor Advisory"]}]}