CVE-2026-118654
Description
Echo is a Go web framework. Prior to 4.16.0 and 5.4.0, Echo's static file handlers can normalize dot segments after route matching and serve a file through a public static route even though the corresponding direct path is protected by route-level middleware. An unauthenticated attacker can read files that an application intended to protect with route-level middleware, when those files are also reachable through a static filesystem mount after path normalization. This vulnerability is the result of an incomplete fix for CVE-2026-55677. This issue is fixed in 4.16.0 and 5.4.0.
How to fix
- github.com/labstack/echo/v55.4.0 or later
- github.com/labstack/echo/v44.16.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| github.com/labstack/echo/v5Go | v < 5.4.0 | 5.4.0 |
| github.com/labstack/echo/v4Go | v < 4.16.0 | 4.16.0 |
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