CVE-2024-52289 authentik has an insecure default configuration for OAuth2 Redirect URIs
Attackers can bypass OAuth2 redirect URI validation by exploiting unescaped regex characters in default configurations, potentially leading to token theft.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-52289?
CVE-2024-52289 is a high-severity vulnerability in goauthentik authentik, published on 21 Nov 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
authentik is an open-source identity provider. Redirect URIs in the OAuth2 provider in authentik are checked by RegEx comparison. When no Redirect URIs are configured in a provider, authentik will automatically use the first redirect_uri value received as an allowed redirect URI, without escaping characters that have a special meaning in RegEx. Similarly, the documentation did not take this into consideration either. Given a provider with the Redirect URIs set to https://foo.example.com, an attacker can register a domain fooaexample.com, and it will correctly pass validation. authentik 2024.8.5 and 2024.10.3 fix this issue. As a workaround, When configuring OAuth2 providers, make sure to escape any wildcard characters that are not intended to function as a wildcard, for example replace `.` with `\.`.
Weakness: CWE-185
Which versions are affected by CVE-2024-52289?
1 open source package ship an affected version, including authentik. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
authentik Bitnami | All versions | 2024.8.5, 2024.10.3 |
Products include Goauthentik Authentik.
How do I fix CVE-2024-52289?
Upgrade authentik to a fixed version for your release line: 2024.8.5 or 2024.10.3.
Is CVE-2024-52289 being exploited?
There is no known exploitation of CVE-2024-52289 in the wild and no public exploit code.
Other vulnerabilities in goauthentik authentik
- CVE-2026-49448 authentik: SourceStage bypass via empty POST
- CVE-2023-46249 authentik potential installation takeover when default admin user is deleted
- CVE-2022-23555 authentik vulnerable to Improper Authentication via invitation URL token reuse
- CVE-2026-42849 authentik: Reflected XSS in SFE AutosubmitStage allows IDP account takeover
- CVE-2026-25227 authentik affected by Remote Code Execution via Context Key Injection in PropertyMapping Test Endpoint
Sources
Also known as BIT-authentik-2024-52289, GHSA-3q5w-6m3x-64gj.