CVE-2026-27793

{"id": "CVE-2026-27793", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-27793", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-03-02T12:50:56.548791Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "seerr-team", "product": "seerr", "versions": [{"status": "affected", "version": "< 3.1.0"}]}]}], "published": "2026-02-27T20:21:39.587", "references": [{"url": "https://github.com/seerr-team/seerr/commit/4f089b29d0bb41d382168b17aa152eb5b8a25303", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/seerr-team/seerr/releases/tag/v3.1.0", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/seerr-team/seerr/security/advisories/GHSA-f7xw-jcqr-57hp", "tags": ["Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-639"}]}], "descriptions": [{"lang": "en", "value": "Seerr is an open-source media request and discovery manager for Jellyfin, Plex, and Emby. Prior to version 3.1.0, the `GET /api/v1/user/:id` endpoint returns the full settings object for any user, including Pushover, Pushbullet, and Telegram credentials, to any authenticated requester regardless of their privilege level. This vulnerability can be exploited alone or combined with the reported unauthenticated account creation vulnerability, CVE-2026-27707. When combined, the two vulnerabilities create a zero-prior-access chain that leaks third-party API credentials for all users, including administrators. Version 3.1.0 contains a fix for both this vulnerability and for CVE-2026-27707."}, {"lang": "es", "value": "Seerr es un gestor de solicitudes y descubrimiento de medios de c\u00f3digo abierto para Jellyfin, Plex y Emby. Antes de la versi\u00f3n 3.1.0, el endpoint 'GET /api/v1/user/:id' devuelve el objeto de configuraci\u00f3n completo para cualquier usuario, incluyendo credenciales de Pushover, Pushbullet y Telegram, a cualquier solicitante autenticado independientemente de su nivel de privilegio. Esta vulnerabilidad puede ser explotada sola o combinada con la vulnerabilidad de creaci\u00f3n de cuentas no autenticadas reportada, CVE-2026-27707. Cuando se combinan, las dos vulnerabilidades crean una cadena de acceso previo cero que filtra credenciales de API de terceros para todos los usuarios, incluyendo administradores. La versi\u00f3n 3.1.0 contiene una soluci\u00f3n para esta vulnerabilidad y para CVE-2026-27707."}], "lastModified": "2026-06-17T10:27:41.540", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:seerr:seerr:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7BB6479F-6D32-46FD-8EB0-27A92F2C38C9", "versionEndExcluding": "3.1.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}