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 is registered globally. This issue is fixed in 4.15.3 and 5.2.0.

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-xwq5-6cqp-vx96 Echo has a Static Middleware Double-Unescape Path Traversal
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 29 Oct 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 28 Oct 2026 22:15:00 +0000

Type Values Removed Values Added
First Time appeared Labstack
Labstack echo
Vendors & Products Labstack
Labstack echo

Wed, 28 Oct 2026 20:15:00 +0000

Type Values Removed Values Added
Description 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 is registered globally. This issue is fixed in 4.15.3 and 5.2.0.
Title Echo: Static Middleware Double-Unescape Path Traversal
Weaknesses CWE-174
References
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-10-29T18:29:50.622Z

Reserved: 2026-10-28T17:25:37.561Z

Link: CVE-2026-118655

cve-icon Vulnrichment

Updated: 2026-10-29T18:29:42.489Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-28T20:17:22.723

Modified: 2026-10-29T19:17:18.690

Link: CVE-2026-118655

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-28T22:00:18Z

Weaknesses