A AegiFlow
MEDIUMCVSS 4.7EPSS 0.2%

CVE-2026-118658

CVE-2026-118658 updated by NVD

Published
2026-10-28
Modified
2026-11-04
EPSS percentile
8%
Sources
github-advisory, nvd

Summary

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.

Affected packages

EcosystemPackageAffected versionsFixed versions
Gogithub.com/labstack/echo/v4—4.15.2
Gogithub.com/labstack/echo/v5—5.1.1

Remediation: Upgrade to 4.15.2 or later.

References

Includes data from the GitHub Advisory Database, licensed under CC-BY 4.0.

Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.

CVE® is a registered trademark of The MITRE Corporation. CVE content reproduced under the CVE Terms of Use; copyright designation © MITRE.

EPSS scores provided by the FIRST.org Exploit Prediction Scoring System.