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CVE-2026-54457— TensorZero: Arbitrary file read and SSRF in TensorZero Gateway's internal object storage endpoint

Quick assessment

Affected
tensorzero tensorzero
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

TensorZero是美国TensorZero公司开源的一个机器学习模型优化与实验管理平台。 TensorZero 2026.6.0之前版本存在安全漏洞，该漏洞源于/internal/object_storage端点接受调用者提供的JSON storage_path参数并动态覆盖[object_storage]配置，可能导致任意文件读取或服务端请求伪造。

CVSS 7.7 · High EPSS 0.40% · P33

Affected Version Matrix 1

VendorProduct Version RangeStatus
tensorzero tensorzero < 2026.6.0 affected
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I. Basic Information for CVE-2026-54457

Vulnerability Information
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Vulnerability Title
TensorZero: Arbitrary file read and SSRF in TensorZero Gateway's internal object storage endpoint
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对外部实体的文件或目录可访问
Source: CVE Program / CVE List V5
Vulnerability Title
TensorZero 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TensorZero是美国TensorZero公司开源的一个机器学习模型优化与实验管理平台。 TensorZero 2026.6.0之前版本存在安全漏洞，该漏洞源于/internal/object_storage端点接受调用者提供的JSON storage_path参数并动态覆盖[object_storage]配置，可能导致任意文件读取或服务端请求伪造。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
tensorzero tensorzero < 2026.6.0 -

II. Public POCs for CVE-2026-54457

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8402 chars
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III. Intelligence Information for CVE-2026-54457

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Vendor Advisories for CVE-2026-54457 (1)

Vendor Pages for CVE-2026-54457 (1)

IV. Related Vulnerabilities

Same weakness: CWE-552

V. Comments for CVE-2026-54457

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