CVE-2026-118650

Echo is a Go web framework. Prior to 4.16.0 and 5.4.0, a globally mounted middleware.Static instance can interpret an encoded request path differently from Echo's router because the router matches the still-encoded path while the static handler uses the decoded URL.Path. The advisory demonstrates an encoded slash resolving to a file under the static root through the global static middleware, but the source is internally inconsistent about whether a route or group guard protects the corresponding literal path in that global-mount configuration. This issue is fixed in 4.16.0 and 5.4.0.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

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-375p-5qhx-8wq4

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-2026-118650

Mitre link : CVE-2026-118650

CVE.ORG link : CVE-2026-118650

JSON object : View

Products Affected

No product.

CWE

CWE-177

Improper Handling of URL Encoding (Hex Encoding)

CWE-863

Incorrect Authorization

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