{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "2026.6.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0abbc838bae3394fe7491dad7009670d4e3b6cf8"
            },
            {
              "fixed": "62eb8f63e8ec62018d70420dbf1a8c5d1c026315"
            }
          ],
          "repo": "https://github.com/tensorzero/tensorzero",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-824w-x939-6cmc"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-552",
      "CWE-918"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54457.json"
  },
  "details": "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.",
  "id": "CVE-2026-54457",
  "modified": "2026-08-23T03:42:36.761224460Z",
  "published": "2026-08-21T20:34:03.632Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/tensorzero/tensorzero/releases/tag/2026.6.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54457.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/tensorzero/tensorzero/security/advisories/GHSA-824w-x939-6cmc"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-54457"
    },
    {
      "type": "FIX",
      "url": "https://github.com/tensorzero/tensorzero/commit/0abbc838bae3394fe7491dad7009670d4e3b6cf8"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "TensorZero: Arbitrary file read and SSRF in TensorZero Gateway's internal object storage endpoint"
}