CVE-2026-3514

{"id": "CVE-2026-3514", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-3514", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-02T13:12:22.941749Z"}}], "cvssMetricV30": [{"type": "Secondary", "source": "security@huntr.dev", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "affected": [{"source": "security@huntr.dev", "affectedData": [{"vendor": "prefecthq", "product": "prefecthq/prefect", "versions": [{"status": "affected", "version": "unspecified", "lessThan": "3.6.22", "versionType": "custom"}]}]}], "published": "2026-06-02T09:16:16.100", "references": [{"url": "https://github.com/prefecthq/prefect/commit/e21617125335025b4b27e7d6f0ca028e8e8f3b79", "tags": ["Patch"], "source": "security@huntr.dev"}, {"url": "https://huntr.com/bounties/c540e5e1-f74f-44f4-bfa0-9764ff6daa75", "tags": ["Exploit", "Third Party Advisory"], "source": "security@huntr.dev"}, {"url": "https://huntr.com/bounties/c540e5e1-f74f-44f4-bfa0-9764ff6daa75", "tags": ["Exploit", "Third Party Advisory"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security@huntr.dev", "description": [{"lang": "en", "value": "CWE-863"}]}], "descriptions": [{"lang": "en", "value": "In version 3.6.19 of prefecthq/prefect, an authentication bypass vulnerability exists due to the improper handling of URL path exemptions for health check probes. Specifically, the authentication middleware exempts any URL path ending with 'health' or 'ready' from authentication checks. This allows an attacker to create resources with names ending in 'health' or 'ready' and access them without authentication. Affected endpoints include those for variables, flows, work pools, work queues, and deployments. This vulnerability can lead to unauthorized access to sensitive information, such as API keys and database credentials, stored in Prefect Variables."}, {"lang": "es", "value": "En la versi\u00f3n 3.6.19 de prefecthq/prefect, existe una vulnerabilidad de omisi\u00f3n de autenticaci\u00f3n debido al manejo inadecuado de las exenciones de rutas URL para las sondas de verificaci\u00f3n de estado. Espec\u00edficamente, el middleware de autenticaci\u00f3n exime cualquier ruta URL que termine en 'health' o 'ready' de las comprobaciones de autenticaci\u00f3n. Esto permite a un atacante crear recursos con nombres que terminan en 'health' o 'ready' y acceder a ellos sin autenticaci\u00f3n. Los endpoints afectados incluyen los de variables, flujos, pools de trabajo, colas de trabajo y despliegues. Esta vulnerabilidad puede conducir a un acceso no autorizado a informaci\u00f3n sensible, como claves API y credenciales de base de datos, almacenadas en las Variables de Prefect."}], "lastModified": "2026-07-22T19:10:00.120", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:prefect:prefect:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0D3318ED-99D9-4882-BB6C-6D70A8FCA349", "versionEndExcluding": "3.6.22"}], "operator": "OR"}]}], "sourceIdentifier": "security@huntr.dev"}