Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

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 是一个开源的 LLMOps（大语言模型运维）平台，统一提供了 LLM 网关、可观测性、评估、优化和实验等功能。在版本 2026.6.0 之前，TensorZero Gateway 的 端点接受由调用方提供的 JSON 参数，该参数会动态覆盖 配置。 当选择文件系统（filesystem）存储类型时，攻击者可以读取网关所在文件系统上的任意文件，包括凭证文件。当选择与 S3 兼容（s3_compatible）的存储类型时，会导致向攻击者指定的内部或云元数据端点发起出站对象存储请求。 该漏洞的利用需

CVSS 7.7 · High EPSS 0.29% · P22

Affected Version Matrix 1

VendorProduct Version RangeStatus
tensorzero tensorzero < 2026.6.0 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-54457

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

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

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
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-54457

请登录查看更多情报信息。

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

No comments yet

Leave a comment