GHSA-grh9-37g7-53mj WireGuard Portal v2 has Open Redirect Vulnerability in OAuth Authentication Flow
Attackers can redirect users to malicious sites after OAuth login due to insufficient validation of the return parameter in WireGuard Portal v2.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is GHSA-grh9-37g7-53mj?
GHSA-grh9-37g7-53mj is a vulnerability in github.com/h44z/wg-portal, published on 2 Feb 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Summary
An Open Redirect vulnerability exists in the OAuth authentication flow that allows attackers to redirect users to external malicious websites after authentication. The vulnerability is caused by insufficient validation of the return parameter in the OAuth login initialization endpoint.
Patches
The problem was fixed in the latest release, v2.1.2. The docker images for the tag 'latest' built from the master branch also include the fix.
Which versions are affected by GHSA-grh9-37g7-53mj?
3 open source packages ship an affected version, including github.com/h44z/wg-portal.
| Package | Affected | Fixed in |
|---|---|---|
github.com/h44z/wg-portal Go | All versions | None |
github.com/h44z/wg-portal Go | All versions | 2.1.2 |
github.com/h44z/wg-portal Go | All versions | 2.1.2 |
How do I fix GHSA-grh9-37g7-53mj?
Upgrade github.com/h44z/wg-portal to 2.1.2 or later.
Is GHSA-grh9-37g7-53mj being exploited?
There is no known exploitation of GHSA-grh9-37g7-53mj in the wild and no public exploit code.
Sources
Also known as GO-2026-4398.