CVE-2026-54457 (GCVE-0-2026-54457)

Vulnerability from cvelistv5 – Published: 2026-08-21 20:34 – Updated: 2026-08-21 20:34
VLAI
Title
TensorZero: Arbitrary file read and SSRF in TensorZero Gateway's internal object storage endpoint
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.
Severity
7.7 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
CWE
  • CWE-552 - Files or Directories Accessible to External Parties
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version CPE status
tensorzero tensorzero Affected: < 2026.6.0
guessed Create a notification for this product.
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        }
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            }
          ]
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        {
          "descriptions": [
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              "lang": "en",
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      "providerMetadata": {
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        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
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          "tags": [
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          "url": "https://github.com/tensorzero/tensorzero/commit/0abbc838bae3394fe7491dad7009670d4e3b6cf8"
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          "tags": [
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          "url": "https://github.com/tensorzero/tensorzero/releases/tag/2026.6.0"
        }
      ],
      "source": {
        "advisory": "GHSA-824w-x939-6cmc",
        "discovery": "UNKNOWN"
      },
      "title": "TensorZero: Arbitrary file read and SSRF in TensorZero Gateway\u0027s internal object storage endpoint"
    }
  },
  "cveMetadata": {
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    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-54457",
    "datePublished": "2026-08-21T20:34:03.632Z",
    "dateReserved": "2026-06-15T15:30:40.318Z",
    "dateUpdated": "2026-08-21T20:34:03.632Z",
    "state": "PUBLISHED"
  },
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      "percentile": "0.21391"
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  }
}



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