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CVE-2026-51882

Estado: AplazadaSin puntuar—

The OpenAI-compatible file upload endpoint `/v1/files` in Langchain-Chatchat 0.3.0 is vulnerable to path traversal. An attacker can write files to arbitrary locations outside the `openai_files` directory by crafting malicious filenames.

CVSS

NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).

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.

Chatchat-space — Langchain-chatchatAI

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-51882",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-10-01T22:17:03.003",
  "references": [
    {
      "url": "https://gist.github.com/Ro1ME/f80ac458836b59adb9c6ceff3993f7f3",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/chatchat-space/Langchain-Chatchat/issues/5468",
      "source": "cve@mitre.org"
    }
  ],
  "vulnStatus": "Deferred",
  "descriptions": [
    {
      "lang": "en",
      "value": "The OpenAI-compatible file upload endpoint `/v1/files` in Langchain-Chatchat 0.3.0 is vulnerable to path traversal. An attacker can write files to arbitrary locations outside the `openai_files` directory by crafting malicious filenames."
    }
  ],
  "lastModified": "2026-10-02T18:47:49.947",
  "sourceIdentifier": "cve@mitre.org"
}