CVE-2026-105238

Estado: AplazadaMedia (5.5)—

A flaw has been found in ChatGPTNextWeb NextChat up to 2.16.1. This vulnerability affects the function proxyHandler of the file app/api/proxy.ts of the component Proxy Fallback Handler. This manipulation of the argument x-base-url causes server-side request forgery. It is possible to initiate the attack remotely. The exploit has been published and may be used. The pull request to fix this issue awaits acceptance.

CVSS

Versión: 4.0
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/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
Puntuación base: 5.5

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.39%
Percentil entre todas las CVEs puntuadas: 31
Fecha de la puntuación: 6/10/2026

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

ExplotaciónT1190 Exploit Public-Facing Applicationinitial access85 %
Impacto principalT1090 Proxycommand and control90 %
Impacto secundarioT1005 Data from Local Systemcollection70 %

AV:N/PR:N/UI:N permite explotación remota sin autenticación (T1190). CWE-918 (SSRF) permite manipular x-base-url para redirigir solicitudes del servidor (T1090), potencialmente accediendo a recursos internos (T1005).

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Filter Network Traffic Vulnerability Scanning SSL/TLS Inspection Privileged Account Management Network Segmentation Network Intrusion Prevention

Tecnologías afectadas (1)

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

Nextchat — Nextchat^AI

CWE

CWE-918

Referencias

JSON original (NVD)

Mostrar

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          "product": "NextChat",
          "versions": [
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  "published": "2026-10-05T07:16:30.180",
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      "url": "https://github.com/ChatGPTNextWeb/NextChat/issues/6813",
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      "url": "https://github.com/ChatGPTNextWeb/NextChat/pull/6884",
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  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw has been found in ChatGPTNextWeb NextChat up to 2.16.1. This vulnerability affects the function proxyHandler of the file app/api/proxy.ts of the component Proxy Fallback Handler. This manipulation of the argument x-base-url causes server-side request forgery. It is possible to initiate the attack remotely. The exploit has been published and may be used. The pull request to fix this issue awaits acceptance."
    }
  ],
  "lastModified": "2026-10-06T15:04:52.637",
  "sourceIdentifier": "cna@vuldb.com"
}