[dependabot]

Bumps github.com/labstack/echo/v5 from 5.3.1 to 5.4.2.

Release notes

Sourced from github.com/labstack/echo/v5's releases.

v5.4.2

Fixes

• Require a space after the case-insensitive Basic authentication scheme. Malformed schemes such as BasicX no longer reach credential validation or consume AllowedCheckLimit. Valid credentials are still required. #3138, thanks to @​Shubham-Padkonde.
• Reject empty cookie tokens and empty client tokens in CSRF validation. This is defense in depth; it does not introduce a new security advisory. #3135, thanks to @​hoangtaiki.

Upgrade

go get github.com/labstack/echo/v5@v5.4.2

Go 1.25 remains the module minimum. Build deployments with a supported, patched Go toolchain. No dependencies or public APIs changed in this release.

The security fixes released in v5.4.1 are included unchanged. Their first patched version remains v5.4.1.

Validation: the fixes passed regression tests and upstream race-test and lint checks on Linux, macOS and Windows with Go 1.25, 1.26 and 1.27. The new regressions were also verified to fail without the fixes.

Full changelog: labstack/echo@v5.4.1...v5.4.2

v5.4.1

Security fixes

Upgrade with go get github.com/labstack/echo/v5@v5.4.1.

• Validate the sending peer before accepting X-Real-IP in ExtractIPFromRealIPHeader, preventing client IP spoofing when that extractor is configured. GHSA-h53f-rm2w-w7rg
• Validate upstream WebSocket upgrade responses through Go's HTTP reverse proxy. Rejected upgrades no longer leave a raw tunnel that bypasses Echo routing and route middleware. GHSA-cxf3-9h37-7rr8
• Close both WebSocket connections when either side disconnects, including when an upstream ignores client EOF. GHSA-9969-6676-49h5
• Preserve the complete request body beyond the BodyDump capture limit and propagate read errors, including BodyLimit overflows. GHSA-x9ff-22gv-65f4, #3105
• Restore the original response writer before returning BodyDump buffers to the pool, preventing writes into a reused buffer during error handling. #3174
• Accept decompressed bodies exactly at the configured limit; keep overflow errors sticky. #3136
• Include the BodyLimit overflow-check correction and static-path hardening already merged since v5.4.0.

Behavior to review when upgrading

The proxy removes incoming Forwarded headers as defensive hardening. Backends relying on that header should use forwarding headers generated from the configured trusted IP extractor and scheme. WebSocket requests now honor the configured proxy transport, response modifier, target path and query in the same way as HTTP requests; ws and wss targets remain supported.

BodyDump capture limits bound logging only: handlers receive the full request, and clients receive the full response. Applications must still consume request bodies and handle read errors to enforce streaming body limits.

Go 1.25 remains the module minimum. Build deployments with a supported, patched Go toolchain.

Other changes

This release also includes ValidateCtx, router fixes for escaped colons, custom methods and parameter storage, binding support for OpenAPI date formats, and documentation updates.

Thanks to @​rm-Umar, @​Duodum, @​irisitymichaelgrundberg, @​Hama1cco, @​jakezwang, @​Shubham-Padkonde and @​rajpreetcodes for reports and contributions, and to the contributors credited in the individual commits.

Validation: upstream lint checks and race tests passed on Linux, macOS and Windows with Go 1.25, 1.26 and 1.27. Local tests on patched toolchains, vet, staticcheck and govulncheck also passed; govulncheck reported no reachable vulnerabilities.

Full changelog: labstack/echo@v5.4.0...v5.4.1

... (truncated)

Changelog

Sourced from github.com/labstack/echo/v5's changelog.

Changelog

v5.4.0 - 2026-09-27

Security

This release fixes several security issues. Upgrading is recommended. Some fixes change behavior; read "Behavior changes to check before upgrading" below.

• Request scheme: Context.Scheme() now uses the X-Forwarded-Proto, X-Forwarded-Protocol, X-Forwarded-Ssl and X-Url-Scheme headers only when the request comes directly from a loopback, link-local or private network address or a unix socket. Before this, any client could send X-Forwarded-Proto: https over plain HTTP and skip HTTPSRedirect. When X-Forwarded-Proto is present, only it is used (its last value), and the scheme is returned in lowercase. Echo#SchemeExtractor (and Config.SchemeExtractor) selects the strategy: ExtractSchemeFromHeaders(...TrustOption) (default), ExtractSchemeDirect() or LegacySchemeExtractor(). The Secure middleware now sets HSTS based on Context.Scheme(). The Proxy middleware always sets X-Forwarded-Proto from Context.Scheme() and removes X-Forwarded-Ssl, X-Forwarded-Protocol and X-Url-Scheme before forwarding. GHSA-2ffq-g2xg-c22p
• Proxy middleware: always sets X-Real-IP from Context.RealIP(), so a client can no longer pass a spoofed X-Real-IP to the upstream. GHSA-99jh-6h7p-pp36
• JSONP: Context.JSONP and Context.JSONPBlob accept only a callback that is empty, a JavaScript identifier or a dot-separated path of identifiers (ASCII letters, digits, _ and $). Any other callback returns a 400 Bad Request error that wraps the new ErrInvalidJSONPCallback, and nothing is written. JSONP responses now carry X-Content-Type-Options: nosniff. JSONP lets any website read the response with the user's cookies, so do not use it for data that needs authentication. GHSA-h9g5-28mm-hx3g
• MethodOverride: a POST can no longer be overridden to GET, HEAD, OPTIONS, TRACE or CONNECT. Before this, with the MethodFromForm or MethodFromQuery getter and MethodOverride registered with Use before the CSRF middleware, _method=GET skipped the CSRF check. Register MethodOverride with Echo#Pre. GHSA-r7w9-592q-9vg4
• Redirects: the trailing slash middlewares and the static directory redirect percent-encode control characters in the redirect path. Before this, /%09/evil.example/ redirected browsers to evil.example. GHSA-v753-g4cw-jm48
• Static files: with the default settings, the Static middleware resolves files from the same form of the path that the router matched, so /admin%2Fsecret.txt or /%61dmin/secret.txt can no longer reach a file under a guarded /admin/* route. GHSA-375p-5qhx-8wq4 The Static middleware and StaticDirectoryHandler (used by Echo.Static, Echo.StaticFS, Group.Static and Group.StaticFS) no longer serve paths with a ., .. or empty segment, such as /assets/../admin/secret.txt, also after path unescaping. GHSA-3pmx-cf9f-34xr

Behavior changes to check before upgrading

• Proxies or load balancers with public IP addresses. If a proxy connects to your app from a public (or 100.64.0.0/10) address, its X-Forwarded-Proto is now ignored: HTTPSRedirect redirects in a loop and the Secure middleware stops sending HSTS. This affects, for example, Cloudflare, CloudFront and Azure Front Door connecting to a public origin, the GCP external HTTP(S) load balancer including GKE Ingress (35.191.0.0/16, 130.211.0.0/22), and networks that use 100.64.0.0/10 (such as Alibaba Cloud SLB or EKS custom networking). Trust the proxy's address ranges:

  _, gclb1, _ := net.ParseCIDR("35.191.0.0/16")
  _, gclb2, _ := net.ParseCIDR("130.211.0.0/22")
  e.SchemeExtractor = echo.ExtractSchemeFromHeaders(echo.TrustIPRange(gclb1), echo.TrustIPRange(gclb2))

  Proxies on the same host, in a private network (AWS ALB, in-cluster ingress controllers such as ingress-nginx or Traefik, most PaaS routers) or on a unix socket keep working without changes. echo.LegacySchemeExtractor() restores the old behavior but is not safe unless every request passes through a proxy that sets these headers. Serverless adapters or middleware that set RemoteAddr to the client's address also make X-Forwarded-Proto ignored (or, if they take it from a header, spoofable).
• Trusted proxies must set X-Forwarded-Proto. A proxy on a trusted address that passes the client's X-Forwarded-Proto through (for example nginx without proxy_set_header X-Forwarded-Proto $scheme;) still lets the client choose the scheme. An invalid X-Forwarded-Proto value now results in http instead of falling back to the other scheme headers.
• Your own tests. httptest.NewRequest sets RemoteAddr to 192.0.2.1:1234, which is not trusted, so tests that set X-Forwarded-Proto now see http. Set req.RemoteAddr = "10.0.0.1:1234" or use e.SchemeExtractor = echo.LegacySchemeExtractor() in such tests.
• Proxy middleware headers. X-Real-IP sent to the upstream is now always Context.RealIP(). In a chain like nginx → Echo Proxy → upstream, configure Echo#IPExtractor (for example echo.ExtractIPFromRealIPHeader()) to pass the client address on. X-Forwarded-Ssl, X-Forwarded-Protocol and X-Url-Scheme are no longer forwarded; X-Forwarded-Proto carries the scheme.
• MethodOverride. Overriding a POST to GET (for example with X-HTTP-Method-Override: GET to send a long query in a POST body) is no longer done; such requests keep the POST method.
• Static files. Paths with a double slash or dot segment (for example /assets//app.js) now return 404; in HTML5 mode the index is still served. The Static middleware no longer finds file names that the client sends with non-default escaping (for example %2C, %40 or lowercase hex like %c3%a9) unless StaticConfig.EnablePathUnescaping is set; Echo.Static has behaved this way since v5.2.1. With StaticConfig.EnablePathUnescaping or Config.EnablePathUnescapingStaticFiles, encoded dots (%2e%2e) no longer traverse directories, but encoded slashes are still decoded, so do not combine these options with route-based access control.
• JSONP. Context.JSONP returns an error for callbacks that are not JavaScript identifiers.

Documentation

• IPExtractor docs: corrected the description of the default (the direct peer address has been used since v5.1.0).
• Static middleware: when registered with Echo#Use it runs before route and group middleware, so route guards do not protect the files it serves.

Commits

• 7c312e0 chore: prepare v5.4.2 release (#3190)
• f9d7e77 fix(middleware): reject empty tokens in CSRF validation (#3135)
• 0996992 fix: check Basic authentication scheme boundary (#3138)
• a6a9673 chore: prepare v5.4.1 security release (#3185)
• 1855061 Merge commit from fork
• 8fd0e18 feat(context): add ValidateCtx (#3152)
• 3882266 docs: move support terms to .github/SUPPORT.md (#3165)
• 1836fed docs: refresh README badges (#3164)
• f098cb2 docs: add Support sponsorship terms (#3163)
• 199f7d8 docs: add Used by section, ADOPTERS.md and tidy README (#3161)
• Additional commits viewable in compare view

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