chore(deps): bump github.com/labstack/echo/v4 from 4.15.3 to 4.15.4 in the gomod group

[dependabot]

Bumps the gomod group with 1 update: github.com/labstack/echo/v4.

Updates github.com/labstack/echo/v4 from 4.15.3 to 4.15.4

Release notes

Sourced from github.com/labstack/echo/v4's releases.

v4.15.4

Security

Fixes GHSA-vfp3-v2gw-7wfq: an encoded path separator (%2F or %5C) in a static file URL could bypass route-level middleware (e.g. authentication on a sibling route) and disclose static files. Both StaticDirectoryHandler (used by Static/StaticFS) and the Static middleware are affected. Backport of the v5 fix (#3016, released in v5.2.1). Thanks to @​a-tt-om and @​oran-gugu for reporting.

---

Make serving static file releated methods and middleware not unescape path by default - so how the way Router interprets paths and Static methods/middleware is consistent.

Given following situation:

// 0.
// given folder structure:
// private.txt
// public/
// public/index.html
// public/text.txt
// public/admin/private.txt
// 1. share public/ folder contents from the server root. This folder actually contains subfolder admin which
// contents we want to forbid from downloading
e.Static("/", "public")
// 2. naively assume that everything under /admin folder is now forbidden
e.GET("/admin/*", func(c *Context) error {
return ErrForbidden
})

Then requests to /admin%2fprivate.txt would not be matched to GET /admin/* route (routing does not look unescaped path) and static file serving will use unescaped path to serve the file.

Note: this way of "guarding" subfolders will never work for for paths like /assets/../admin%2fprivate.txt which will path.Clean("/assets/../admin%2fprivate.txt") to /admin/private.txt and are servable if static file serving is configured to unescape paths.

If you want to guard routes - use middlewares on Static* methods and before Static middleware.

Breaking change / migration: If you serve files whose names contain URL-encoded characters (e.g., /hello%20world.txt → hello world.txt), you must now opt in:

	e := echo.New()
	e.EnablePathUnescapingStaticFiles = true  // <-- enable old behavior
	e.Static("/", "public")

for static middleware

	e.Use(middleware.StaticWithConfig(middleware.StaticConfig{
		EnablePathUnescaping: true, // <-- enable old behavior
	}))

... (truncated)

Changelog

Sourced from github.com/labstack/echo/v4's changelog.

v4.15.4 - 2026-06-15

Security

Fixes GHSA-vfp3-v2gw-7wfq

Make serving static file releated methods and middleware not unescape path by default - so how the way Router interprets paths and Static methods/middleware is consistent.

Given following situation:

// 0.
// given folder structure:
// private.txt
// public/
// public/index.html
// public/text.txt
// public/admin/private.txt
// 1. share public/ folder contents from the server root. This folder actually contains subfolder admin which
// contents we want to forbid from downloading
e.Static("/", "public")
// 2. naively assume that everything under /admin folder is now forbidden
e.GET("/admin/*", func(c *Context) error {
return ErrForbidden
})

Then requests to /admin%2fprivate.txt would not be matched to GET /admin/* route (routing does not look unescaped path) and static file serving will use unescaped path to serve the file.

Note: this way of "guarding" subfolders will never work for for paths like /assets/../admin%2fprivate.txt which will path.Clean("/assets/../admin%2fprivate.txt") to /admin/private.txt and are servable if static file serving is configured to unescape paths.

If you want to guard routes - use middlewares on Static* methods and before Static middleware.

Breaking change / migration: If you serve files whose names contain URL-encoded characters (e.g., /hello%20world.txt → hello world.txt), you must now opt in:

	e := echo.New()
	e.EnablePathUnescapingStaticFiles = true  // <-- enable old behavior
	e.Static("/", "public")

for static middleware

	e.Use(middleware.StaticWithConfig(middleware.StaticConfig{
		EnablePathUnescaping: true, // <-- enable old behavior
	}))

Commits

• ec79b58 Merge pull request #3020 from aldas/v4_v4-15-4_changelog
• 2714c07 Changelog for v4.15.4 - security fix
• 13f0ed1 Merge pull request #3019 from aldas/v4_backport_3016
• d16a4ec backport PR 3016 from v4
• 8f167b9 Merge pull request #3018 from aldas/v4_remove_v5_dep
• 9afa4ba remove dependency on labstack/echo v5 introduced in go.mod and go.sum
• 1e05f63 Merge pull request #3017 from aldas/v4_ci_updates
• 11a3cc4 Update dependencies and add ignore for linting
• 26bd016 Update CI action versions
• aa52f6a ci: run workflows on the v4 branch, not just master (#3013)
• See full diff in compare view

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