CVE-2026-86157: medium-severity vulnerability in Progress® Telerik® Fiddler® Everywhere
Exposure of Privileged IPC Functionality in Progress Telerik Fiddler Everywhere
Published · Updated
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.6epss 0.1%
exploitation probability
0.1%top 98% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N
Affected products
Progress Software · Progress® Telerik® Fiddler® EverywhereRelated CVEs — Progress® Telerik® Fiddler® Everywhere
In the same product, most dangerous first.