CVE-2025-32431

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In versions prior to 2.11.24, 3.3.6, and 3.4.0-rc2. There is a potential vulnerability in Traefik managing the requests using a PathPrefix, Path or PathRegex matcher. When Traefik is configured to route the requests to a backend using a matcher based on the path, if the URL contains a /../ in its path, it\u2019s possible to target a backend, exposed using another router, by-passing the middlewares chain. This issue has been patched in versions 2.11.24, 3.3.6, and 3.4.0-rc2. A workaround involves adding a `PathRegexp` rule to the matcher to prevent matching a route with a `/../` in the path."}, {"lang": "es", "value": "Traefik (pronunciado \"traffic\") es un proxy inverso HTTP y balanceador de carga. En versiones anteriores a 2.11.24, 3.3.6 y 3.4.0-rc2, existe una vulnerabilidad potencial en Traefik al gestionar las solicitudes mediante un comparador PathPrefix, Path o PathRegex. Cuando Traefik se configura para enrutar las solicitudes a un backend mediante un comparador basado en la ruta, si la URL contiene un /../ en su ruta, es posible dirigirse a un backend expuesto mediante otro enrutador, omitiendo la cadena de middleware. Este problema se ha corregido en las versiones 2.11.24, 3.3.6 y 3.4.0-rc2. Un workaround consiste en a\u00f1adir una regla `PathRegexp` al comparador para evitar que coincida con una ruta que contenga un `/../` en la ruta."}], "id": "CVE-2025-32431", "lastModified": "2026-06-17T09:11:58.890", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "PROOF_OF_CONCEPT", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-32431", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2025-04-21T15:55:08.342564Z", "version": "2.0.3"}}]}, "published": "2025-04-21T16:15:54.610", "references": [{"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/traefik/traefik/pull/11684"}, {"source": "security-advisories@github.com", "tags": ["Release Notes"], "url": "https://github.com/traefik/traefik/releases/tag/v2.11.24"}, {"source": "security-advisories@github.com", "tags": ["Release Notes"], "url": "https://github.com/traefik/traefik/releases/tag/v3.3.6"}, {"source": "security-advisories@github.com", "tags": ["Release Notes"], "url": "https://github.com/traefik/traefik/releases/tag/v3.4.0-rc2"}, {"source": "security-advisories@github.com", "tags": ["Patch", "Vendor Advisory"], "url": "https://github.com/traefik/traefik/security/advisories/GHSA-6p68-w45g-48j7"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-22"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"created": "2025-07-13T11:06:47.258041+00:00", "updated": "2025-07-13T11:06:47.258152+00:00", "vendors": ["traefik", "traefik$PRODUCT$traefik"]}