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CVE-2025-57817— Fides Webserver API is Vulnerable to OAuth Client Privilege Escalation

Quick assessment

Affected
ethyca fides
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Fides是Ethyca开源的一个开源隐私工程平台，用于管理运行时环境中数据隐私请求的实现以及代码中隐私法规的执行。 Fides 2.69.1之前版本存在安全漏洞，该漏洞源于OAuth客户端创建和更新端点存在权限提升。

AI Predicted 8.1 Difficulty: Moderate EPSS 0.42% · P34

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts
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I. Basic Information for CVE-2025-57817

Vulnerability Information
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Vulnerability Title
Fides Webserver API is Vulnerable to OAuth Client Privilege Escalation
Source: CVE Program / CVE List V5
Vulnerability Description
Fides is an open-source privacy engineering platform. Prior to version 2.69.1, the OAuth client creation and update endpoints of the Fides Webserver API do not properly authorize scope assignment. This allows highly privileged users with `client:create` or `client:update` permissions to escalate their privileges to owner-level. Version 2.69.1 fixes the issue. No known workarounds are available.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Fides 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Fides是Ethyca开源的一个开源隐私工程平台，用于管理运行时环境中数据隐私请求的实现以及代码中隐私法规的执行。 Fides 2.69.1之前版本存在安全漏洞，该漏洞源于OAuth客户端创建和更新端点存在权限提升。
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
ethyca fides < 2.69.1 -

II. Public POCs for CVE-2025-57817

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III. Intelligence Information for CVE-2025-57817

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Same Patch Batch · ethyca · 2025-09-08 · 4 CVEs total

CVE-2025-57816 Fides Webserver API Rate Limiting Vulnerability in Proxied Environments
CVE-2025-57815 Fides Lacks Brute-Force Protections on Authentication Endpoints
CVE-2025-57766 Fides's Admin UI User Password Change Does Not Invalidate Current Session

IV. Related Vulnerabilities

Same product: fides
Same vendor: ethyca
Same weakness: CWE-862

V. Comments for CVE-2025-57817

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