{"id":"CVE-2026-54457","state":"PUBLISHED","title":"TensorZero: Arbitrary file read and SSRF in TensorZero Gateway's internal object storage endpoint","description":"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.","publishedAt":"2026-08-21T20:34:03.632Z","updatedAt":"2026-08-25T13:38:42.654Z","severity":{"score":7.7,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["tensorzero tensorzero"],"affected":[{"vendor":"tensorzero","product":"tensorzero","versions":[{"version":"< 2026.6.0","status":"affected"}]}],"references":["https://github.com/tensorzero/tensorzero/security/advisories/GHSA-824w-x939-6cmc","https://github.com/tensorzero/tensorzero/commit/0abbc838bae3394fe7491dad7009670d4e3b6cf8","https://github.com/tensorzero/tensorzero/releases/tag/2026.6.0"],"weaknesses":["CWE-552","CWE-918"],"ingestedAt":"2026-10-29T20:12:24.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/54xxx/CVE-2026-54457.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-54457","state":"PUBLISHED","datePublished":"2026-08-21T20:34:03.632Z","dateUpdated":"2026-08-25T13:38:42.654Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-15T15:30:40.318Z"},"containers":{"cna":{"title":"TensorZero: Arbitrary file read and SSRF in TensorZero Gateway's internal object storage endpoint","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."}],"affected":[{"vendor":"tensorzero","product":"tensorzero","versions":[{"version":"< 2026.6.0","status":"affected"}]}],"references":[{"url":"https://github.com/tensorzero/tensorzero/security/advisories/GHSA-824w-x939-6cmc","name":"https://github.com/tensorzero/tensorzero/security/advisories/GHSA-824w-x939-6cmc","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/tensorzero/tensorzero/commit/0abbc838bae3394fe7491dad7009670d4e3b6cf8","name":"https://github.com/tensorzero/tensorzero/commit/0abbc838bae3394fe7491dad7009670d4e3b6cf8","tags":["x_refsource_MISC"]},{"url":"https://github.com/tensorzero/tensorzero/releases/tag/2026.6.0","name":"https://github.com/tensorzero/tensorzero/releases/tag/2026.6.0","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-552","lang":"en","description":"CWE-552: Files or Directories Accessible to External Parties","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-918","lang":"en","description":"CWE-918: Server-Side Request Forgery (SSRF)","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-08-21T20:34:03.632Z"},"source":{"advisory":"GHSA-824w-x939-6cmc","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-25T13:38:33.360585Z","id":"CVE-2026-54457","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-25T13:38:42.654Z"}}]}}}