CVE-2026-118654

Echo is a Go web framework. Prior to 4.16.0 and 5.4.0, Echo's static file handlers can normalize dot segments after route matching and serve a file through a public static route even though the corresponding direct path is protected by route-level middleware. An unauthenticated attacker can read files that an application intended to protect with route-level middleware, when those files are also reachable through a static filesystem mount after path normalization. This vulnerability is the result of an incomplete fix for CVE-2026-55677. This issue is fixed in 4.16.0 and 5.4.0.

CVSS v3 5.9 MEDIUM

5.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/labstack/echo/commit/b838391e2eade87ae7e5a09d7bb5087bec271ec1
https://github.com/labstack/echo/commit/fc410094b2f3415cf2bf5204082137b205bfd5af
https://github.com/labstack/echo/releases/tag/v4.16.0
https://github.com/labstack/echo/releases/tag/v5.4.0
https://github.com/labstack/echo/security/advisories/GHSA-3pmx-cf9f-34xr

Configurations

No configuration.

History

28 Oct 2026, 20:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-28 20:17

Updated : 2026-10-29 15:15

NVD link : CVE-2026-118654

Mitre link : CVE-2026-118654

CVE.ORG link : CVE-2026-118654

JSON object : View

Products Affected

No product.

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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