CVE-2026-23522

{"id": "CVE-2026-23522", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 3.7, "attackVector": "NETWORK", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 2.2}]}, "published": "2026-01-19T17:15:50.590", "references": [{"url": "https://github.com/lobehub/lobe-chat/commit/2c1762b85acb84467ed5e799afe1499cd2f912e6", "source": "security-advisories@github.com"}, {"url": "https://github.com/lobehub/lobe-chat/security/advisories/GHSA-j7xp-4mg9-x28r", "source": "security-advisories@github.com"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-284"}, {"lang": "en", "value": "CWE-639"}, {"lang": "en", "value": "CWE-862"}, {"lang": "en", "value": "CWE-915"}]}], "descriptions": [{"lang": "en", "value": "LobeChat is an open source chat application platform. Prior to version 2.0.0-next.193, `knowledgeBase.removeFilesFromKnowledgeBase` tRPC ep allows authenticated users to delete files from any knowledge base without verifying ownership. `userId` filter in the database query is commented out, so it's enabling attackers to delete other users' KB files if they know the knowledge base ID and file ID. While the vulnerability is confirmed, practical exploitation requires knowing target's KB ID and target's file ID. These IDs are random and not easily enumerable. However, IDs may leak through shared links, logs, referrer headers and so on. Missing authorization check is a critical security flaw regardless. Users should upgrade to version 2.0.0-next.193 to receive a patch."}, {"lang": "es", "value": "LobeChat es una plataforma de aplicaci\u00f3n de chat de c\u00f3digo abierto. Antes de la versi\u00f3n 2.0.0-next.193, el endpoint tRPC 'knowledgeBase.removeFilesFromKnowledgeBase' permite a los usuarios autenticados eliminar archivos de cualquier base de conocimiento sin verificar la propiedad. El filtro 'userId' en la consulta de la base de datos est\u00e1 comentado, lo que permite a los atacantes eliminar archivos de KB de otros usuarios si conocen el ID de la base de conocimiento y el ID del archivo. Aunque la vulnerabilidad est\u00e1 confirmada, la explotaci\u00f3n pr\u00e1ctica requiere conocer el ID de KB del objetivo y el ID del archivo del objetivo. Estos ID son aleatorios y no son f\u00e1cilmente enumerables. Sin embargo, los ID pueden filtrarse a trav\u00e9s de enlaces compartidos, registros, encabezados de referencia y dem\u00e1s. La falta de verificaci\u00f3n de autorizaci\u00f3n es una falla de seguridad cr\u00edtica de todos modos. Los usuarios deben actualizar a la versi\u00f3n 2.0.0-next.193 para recibir un parche."}], "lastModified": "2026-04-15T00:35:42.020", "sourceIdentifier": "security-advisories@github.com"}