CVE-2026-118658

Echo is a Go web framework. Prior to 4.15.2 and 5.1.1, Context.Scheme returns values from X-Forwarded-Proto, X-Forwarded-Protocol, or X-Url-Scheme without validating that they are supported web schemes. WWWRedirect and NonWWWRedirect use that value to construct a Location header, so an attacker controlling a forwarded scheme header can cause a redirect to use an arbitrary URI scheme. Exploitation requires an affected redirect middleware and user interaction with the response; the HTTPS-specific redirect variants hardcode HTTPS and are unaffected. This issue is fixed in 4.15.2 and 5.1.1.

CVSS v3 4.7 MEDIUM

4.7^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/labstack/echo/commit/ca4f38a474302aabee93c66bdd0052359882e181
https://github.com/labstack/echo/commit/d1d8ad3f99dd9b80542cd0c357d56a8916c515df
https://github.com/labstack/echo/releases/tag/v4.15.2
https://github.com/labstack/echo/releases/tag/v5.1.1
https://github.com/labstack/echo/security/advisories/GHSA-23wf-92cp-8pcj

Configurations

No configuration.

History

28 Oct 2026, 21:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-28 21:16

Updated : 2026-10-29 15:15

NVD link : CVE-2026-118658

Mitre link : CVE-2026-118658

CVE.ORG link : CVE-2026-118658

JSON object : View

Products Affected

No product.

CWE

CWE-601

URL Redirection to Untrusted Site ('Open Redirect')

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