Missing authentication in the local .NET backend (Fiddler.WebUi) of Progress Software Fiddler Everywhere 8.0.2 allows a local unauthenticated attacker to mint OAuth tokens and read the machine-in-the-middle root certificate through an unauthenticated localhost HTTP and SignalR RPC channel.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Progress Software | Progress® Telerik® Fiddler® Everywhere | unaffected |
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Fixes
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References
History
Tue, 29 Sep 2026 06:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Missing authentication in the local .NET backend (Fiddler.WebUi) of Progress Software Fiddler Everywhere 8.0.2 allows a local unauthenticated attacker to mint OAuth tokens and read the machine-in-the-middle root certificate through an unauthenticated localhost HTTP and SignalR RPC channel. | |
| Title | Missing Authentication in the local .NET backend of Progress Telerik Fiddler Everywhere | |
| Weaknesses | CWE-306 | |
| References |
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| Metrics |
cvssV3_1
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MITRE
Status: PUBLISHED
Assigner: ProgressSoftware
Published:
Updated: 2026-09-29T06:34:24.264Z
Reserved: 2026-09-05T09:09:33.404Z
Link: CVE-2026-86158
Vulnrichment
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OpenCVE Enrichment
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Weaknesses