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CVE-2026-23522

Estado: AplazadaBaja (3.7)—

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.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Lobechat — LobechatAI

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-23522",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-23522",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-01-20T21:35:33.327391Z"
        }
      }
    ],
    "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
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "lobehub",
          "product": "lobe-chat",
          "versions": [
            {
              "status": "affected",
              "version": "< 2.0.0-next.193"
            }
          ]
        }
      ]
    }
  ],
  "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": "Secondary",
      "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 aplicación de chat de código abierto. Antes de la versión 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 está 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 está confirmada, la explotación práctica requiere conocer el ID de KB del objetivo y el ID del archivo del objetivo. Estos ID son aleatorios y no son fácilmente enumerables. Sin embargo, los ID pueden filtrarse a través de enlaces compartidos, registros, encabezados de referencia y demás. La falta de verificación de autorización es una falla de seguridad crítica de todos modos. Los usuarios deben actualizar a la versión 2.0.0-next.193 para recibir un parche."
    }
  ],
  "lastModified": "2026-06-17T10:21:43.300",
  "sourceIdentifier": "security-advisories@github.com"
}