Echo: Static Middleware Double-Unescape Path Traversal
Exact source revision recorded 28 Oct 2026 21:55:13 UTC. It does not establish the source's current position. Latest evidence.
cve-program · CVE-2026-118655
PublishedEcho 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 is registered globally. This issue is fixed in 4.15.3 and 5.2.0.
- Source published
- 28 Oct 2026 20:03:56 UTC
- Source modified
- 28 Oct 2026 20:03:56 UTC
- Observed here
- 28 Oct 2026 21:55:13 UTC
- Source terms
- CVE Program Terms of Use
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CVSS 3.1 · 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N