CVE-2026-54457
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| tensorzero | tensorzero | < 2026.6.0 | affected |
Weaknesses
- CWE-552: CWE-552: Files or Directories Accessible to External Parties
- CWE-918: CWE-918: Server-Side Request Forgery (SSRF)
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
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