Cloudanix VulnDB

CVE-2026-55677

High · 7.5

CVSS

7.5

EPSS

0.4%

Published

Jun 26, 2026

CISA due date

—

The record

Echo is a Go web framework. Prior to 4.15.3 and 5.2.0, Echo's router and static file handler disagree on URL path decoding. The router matches routes using the raw encoded path (preserving %2F as-is), while StaticDirectoryHandler unescapes %2F to / before resolving filesystem paths. This allows an attacker to bypass route-level access controls and read static files without authorization. This vulnerability is fixed in 4.15.3 and 5.2.0.

Affected packages

Ecosystem Package Introduced Fixed

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