CVE-2026-54457

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.

CVSS v3 7.7 HIGH

7.7^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.1 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/tensorzero/tensorzero/commit/0abbc838bae3394fe7491dad7009670d4e3b6cf8
https://github.com/tensorzero/tensorzero/releases/tag/2026.6.0
https://github.com/tensorzero/tensorzero/security/advisories/GHSA-824w-x939-6cmc

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-21 21:17

Updated : 2026-09-11 18:24

NVD link : CVE-2026-54457

Mitre link : CVE-2026-54457

CVE.ORG link : CVE-2026-54457

JSON object : View

Products Affected

No product.

CWE

CWE-552

Files or Directories Accessible to External Parties

CWE-918

Server-Side Request Forgery (SSRF)

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