FKIE_CVE-2026-54457

Vulnerability from fkie_nvd - Published: 2026-08-21 21:17 - Updated: 2026-10-14 19:10
Severity
7.7 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Summary
TensorZero is an open-source LLMOps platform that unifies an LLM gateway, observability, evaluation, optimization, and experimentation. Prior to 2026.6.0, the TensorZero Gateway /internal/object_storage endpoint accepts a caller-supplied JSON storage_path parameter that dynamically overrides the [object_storage] configuration. Selecting the filesystem storage type allows arbitrary files on the gateway filesystem to be read, including credential files. Selecting the s3_compatible storage type causes outbound object-storage requests to attacker-chosen internal or cloud-metadata endpoints. Exploitation requires access to the gateway, which can be authenticated or unauthenticated depending on deployment configuration. This issue is fixed in version 2026.6.0.
References
security-advisories@github.comhttps://github.com/tensorzero/tensorzero/commit/0abbc838bae3394fe7491dad7009670d4e3b6cf8
security-advisories@github.comhttps://github.com/tensorzero/tensorzero/releases/tag/2026.6.0
security-advisories@github.comhttps://github.com/tensorzero/tensorzero/security/advisories/GHSA-824w-x939-6cmc
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "tensorzero",
          "vendor": "tensorzero",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2026.6.0"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "TensorZero is an open-source LLMOps platform that unifies an LLM gateway, observability, evaluation, optimization, and experimentation. Prior to 2026.6.0, the TensorZero Gateway /internal/object_storage endpoint accepts a caller-supplied JSON storage_path parameter that dynamically overrides the [object_storage] configuration. Selecting the filesystem storage type allows arbitrary files on the gateway filesystem to be read, including credential files. Selecting the s3_compatible storage type causes outbound object-storage requests to attacker-chosen internal or cloud-metadata endpoints. Exploitation requires access to the gateway, which can be authenticated or unauthenticated depending on deployment configuration. This issue is fixed in version 2026.6.0."
    },
    {
      "lang": "es",
      "value": "TensorZero es una plataforma LLMOps de c\u00f3digo abierto que unifica una pasarela LLM, observabilidad, evaluaci\u00f3n, optimizaci\u00f3n y experimentaci\u00f3n. Antes de la versi\u00f3n 2026.6.0, el endpoint /internal/object_storage de TensorZero Gateway acepta un par\u00e1metro JSON storage_path proporcionado por el llamador que anula din\u00e1micamente la configuraci\u00f3n [object_storage]. Seleccionar el tipo de almacenamiento filesystem permite que archivos arbitrarios en el sistema de archivos de la pasarela sean le\u00eddos, incluyendo archivos de credenciales. Seleccionar el tipo de almacenamiento s3_compatible provoca que las solicitudes salientes de almacenamiento de objetos se dirijan a endpoints internos o de metadatos de la nube elegidos por el atacante. La explotaci\u00f3n requiere acceso a la pasarela, que puede ser autenticado o no autenticado dependiendo de la configuraci\u00f3n de despliegue. Este problema est\u00e1 solucionado en la versi\u00f3n 2026.6.0."
    }
  ],
  "id": "CVE-2026-54457",
  "lastModified": "2026-10-14T19:10:00.297",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.7,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.1,
        "impactScore": 4.0,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-54457",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-25T13:38:33.360585Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-21T21:17:00.267",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/tensorzero/tensorzero/commit/0abbc838bae3394fe7491dad7009670d4e3b6cf8"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/tensorzero/tensorzero/releases/tag/2026.6.0"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/tensorzero/tensorzero/security/advisories/GHSA-824w-x939-6cmc"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-552"
        },
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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