{"id":"CVE-2026-54457","title":"TensorZero is an open-source LLMOps platform that unifies an LLM gateway, observability, evaluation, optimization, and experimentation","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…","severity":"high","cvss":7.7,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","cwe":["CWE-552","CWE-918"],"vendor":"tensorzero","product":"tensorzero","affected":["tensorzero < 2026.6.0"],"patched":["tensorzero 2026.6.0"],"published":"2026-08-21","updated":"2026-09-11","sourceUpdated":"2026-09-11T18:24:59.400","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-54457","references":[{"url":"https://github.com/tensorzero/tensorzero/commit/0abbc838bae3394fe7491dad7009670d4e3b6cf8","label":"security-advisories@github.com"},{"url":"https://github.com/tensorzero/tensorzero/releases/tag/2026.6.0","label":"security-advisories@github.com"},{"url":"https://github.com/tensorzero/tensorzero/security/advisories/GHSA-824w-x939-6cmc","label":"security-advisories@github.com"},{"url":"https://github.com/advisories/GHSA-824w-x939-6cmc"}],"tags":["nvd","ghsa","pip"],"epss":0.00294,"epssPercentile":0.22288,"aliases":["GHSA-824w-x939-6cmc"],"ecosystem":"pip","ingestedAt":"2026-07-15T22:46:58.887Z","slug":"CVE-2026-54457","body":"## Overview\n\nTensorZero 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-54457)\n\nAffected packages:\n\n- `tensorzero < 2026.6.0`\n\nPatched in:\n\n- `tensorzero 2026.6.0`\n\nSource: https://github.com/advisories/GHSA-824w-x939-6cmc","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":42.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}