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.
Impact
Untrusted input controls a URL used for redirection, which can forward users to attacker-controlled sites. Typical impact: phishing and credential harvesting via a trusted domain.
GHSA-GRH9-37G7-53MJ has a CVSS score of 6.1 (Medium). The vector is network-reachable, no privileges required, and user interaction required. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (2.1.2); upgrading removes the vulnerable code path.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
Remediation advice
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.
Frequently Asked Questions
- What is GHSA-GRH9-37G7-53MJ? GHSA-GRH9-37G7-53MJ is a medium-severity open redirect vulnerability in github.com/h44z/wg-portal (go), affecting versions <= 2.1.1. It is fixed in 2.1.2. Untrusted input controls a URL used for redirection, which can forward users to attacker-controlled sites.
- How severe is GHSA-GRH9-37G7-53MJ? GHSA-GRH9-37G7-53MJ has a CVSS score of 6.1 (Medium). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
- Which versions of github.com/h44z/wg-portal are affected by GHSA-GRH9-37G7-53MJ? github.com/h44z/wg-portal (go) versions <= 2.1.1 is affected.
- Is there a fix for GHSA-GRH9-37G7-53MJ? Yes. GHSA-GRH9-37G7-53MJ is fixed in 2.1.2. Upgrade to this version or later.
- Is GHSA-GRH9-37G7-53MJ exploitable, and should I be worried? Whether GHSA-GRH9-37G7-53MJ is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether GHSA-GRH9-37G7-53MJ is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix GHSA-GRH9-37G7-53MJ? Upgrade
github.com/h44z/wg-portalto 2.1.2 or later.