Echo has a Static Middleware Double-Unescape Path Traversal

Summary Commit a9ede66a PR 3006, issue 2599 silently fixed a path traversal vulnerability in the Echo web framework's static file middleware. Vulnerability The static middleware double-unescaped URL paths. Go's net/http already decodes Request.URL.Path, but middleware/static.go unconditionally...

CVE-2026-118655 Echo: Static Middleware Double-Unescape Path Traversal

Echo is a Go web framework. Prior to 4.15.3 and 5.2.0, middleware.Static can decode an already decoded Request.URL.Path a second time. Double-encoded separators can consequently be reconstructed before filesystem resolution. This can reach a file under a guarded route when the static middleware i...

CVE-2026-118655

The Echo Go web framework is vulnerable to a path traversal issue in versions prior to 4.15.3 and 5.2.0 . The middleware.Static component can perform a second decoding on an already decoded Request.URL.Path . This allows an attacker to use double-encoded separators to reconstruct restricted paths...

Improper Input Validation

Overview local-deep-research is an AI-powered research assistant with deep, iterative analysis using LLMs and web searches Affected versions of this package are vulnerable to Improper Input Validation via the HTML entity decoding logic in the client-side PDF export pipeline. An attacker can explo...