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CVE-2026-42303— Fides: Privacy Request Identity Verification Bypass Vulnerability via Duplicate Detection

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 2.75.0版本至2.83.2之前版本存在安全漏洞，该漏洞源于启用主体身份验证和重复隐私请求检测时，管理员可批准身份从未验证的隐私请求，可能导致未经授权删除受影响部署中每个集成的数据主体记录。

AI Predicted 8.4 Difficulty: Moderate EPSS 0.55% · P44

Affected Version Matrix 1

VendorProduct Version RangeStatus
ethyca fides >= 2.75.0, < 2.83.2 affected
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I. Basic Information for CVE-2026-42303

Vulnerability Information
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Vulnerability Title
Fides: Privacy Request Identity Verification Bypass Vulnerability via Duplicate Detection
Source: CVE Program / CVE List V5
Vulnerability Description
Fides is an open-source privacy engineering platform. From 2.75.0 to before 2.83.2, Fides deployments that enable both subject identity verification and duplicate privacy request detection are affected by a vulnerability in which an administrator can approve a privacy request whose identity was never verified. For erasure policies, this can result in unauthorized deletion of a data subject's records across every integration configured in the affected deployment. This vulnerability is fixed in 2.83.2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:H/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用候选路径或通道进行的认证绕过
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 2.75.0版本至2.83.2之前版本存在安全漏洞，该漏洞源于启用主体身份验证和重复隐私请求检测时，管理员可批准身份从未验证的隐私请求，可能导致未经授权删除受影响部署中每个集成的数据主体记录。
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 >= 2.75.0, < 2.83.2 -

II. Public POCs for CVE-2026-42303

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III. Intelligence Information for CVE-2026-42303

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Patches & Fixes for CVE-2026-42303 (4)

Vendor Advisories for CVE-2026-42303 (1)

Vendor Pages for CVE-2026-42303 (1)

IV. Related Vulnerabilities

Same product: fides
Same vendor: ethyca
Same weakness: CWE-288

V. Comments for CVE-2026-42303

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