CVE-2026-77802 | Progress Telerik Fiddler Classic prior 6.0.20262.10021 Proxy Request Forwarding request smuggling

October 5, 2026 Yanac

A vulnerability has been found in Progress Telerik Fiddler Classic and classified as problematic. Impacted is an unknown function of the component Proxy Request Forwarding. This manipulation causes http request smuggling.

This vulnerability is registered as CVE-2026-77802. Remote exploitation of the attack is possible. No exploit is available.

The affected component should be upgraded.VulDB Recent EntriesRead More