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GO-2026-5887

GoFiber Vulnerable to X-Real-IP Spoofing via Header.Add() in BalancerForward in github.com/gofiber/fiber

Quick fix

GO-2026-5887 — github.com/gofiber/fiber/v3: upgrade to the fixed version with the command below.

go get github.com/gofiber/fiber/v3@v3.3.0

Details

GoFiber Vulnerable to X-Real-IP Spoofing via Header.Add() in BalancerForward in github.com/gofiber/fiber

Are you affected?

Enter the version of the package you're using.

Affected packages

Go / github.com/gofiber/fiber/v3
Introduced in: 0 Fixed in: 3.3.0
Fix go get github.com/gofiber/fiber/v3@v3.3.0

References