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CVE-2026-86157— Exposure of Privileged IPC Functionality in Progress Telerik Fiddler Everywhere

Quick assessment

Affected
Progress Software Progress® Telerik® Fiddler® Everywhere
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.

Progress Telerik Fiddler Everywhere 在 8.2.0 之前的版本中暴露了特权 IPC（进程间通信）功能，这使得本地低权限攻击者能够修改应用程序启动参数，并诱使用户启动该应用，从而用攻击者控制的内容替换应用程序的用户界面或设置。成功利用此漏洞可能导致 OAuth 认证令牌泄露、执行本地可访问的程序，或对应用程序生成的配置文件进行未授权的修改。

CVSS 5.6 · Medium
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I. Basic Information for CVE-2026-86157

Vulnerability Information
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Vulnerability Title
Exposure of Privileged IPC Functionality in Progress Telerik Fiddler Everywhere
Source: CVE Program / CVE List V5
Vulnerability Description
Exposure of privileged IPC functionality in Progress Telerik Fiddler Everywhere before version 8.2.0 allows a local, low-privileged attacker who can modify application launch parameters and persuade a user to start the application to replace the application UI or settings with attacker-controlled content. Successful exploitation could result in disclosure of OAuth authentication tokens, execution of locally accessible programs, or unauthorized modification of application-generated configuration files.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
暴露危险的方法或函数
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Progress Software Progress® Telerik® Fiddler® Everywhere 1.0.0 ~ 8.2.0 -

II. Public POCs for CVE-2026-86157

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III. Intelligence Information for CVE-2026-86157

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Other References for CVE-2026-86157 (1)

IV. Related Vulnerabilities

Same product: Progress® Telerik® Fiddler® Everywhere
Same vendor: Progress Software
Same weakness: CWE-749

V. Comments for CVE-2026-86157

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