{"id":"BIT-authentik-2024-52289","summary":"authentik has an insecure default configuration for OAuth2 Redirect URIs","details":"authentik is an open-source identity provider. Redirect URIs in the OAuth2 provider in authentik are checked by RegEx comparison.\nWhen 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 `\\.`.","aliases":["CVE-2024-52289","GHSA-3q5w-6m3x-64gj"],"modified":"2026-09-10T16:01:08.826876098Z","published":"2026-04-16T23:36:22.514Z","database_specific":{"severity":"Critical","cpes":["cpe:2.3:a:goauthentik:authentik:*:*:*:*:*:go:*:*"]},"references":[{"type":"FIX","url":"https://github.com/goauthentik/authentik/commit/85bb638243c8d7ea42ddd3b15b3f51a90d2b8c54"},{"type":"ADVISORY","url":"https://github.com/goauthentik/authentik/security/advisories/GHSA-3q5w-6m3x-64gj"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-52289"},{"type":"WEB","url":"https://www.vicarius.io/vsociety/posts/cve-2024-52289-detect-authentik-vulnerability"},{"type":"WEB","url":"https://www.vicarius.io/vsociety/posts/cve-2024-52289-mitigate-authentik-vulnerability"}],"affected":[{"package":{"name":"authentik","ecosystem":"Bitnami","purl":"pkg:bitnami/authentik"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2024.8.5"},{"introduced":"2024.10.0"},{"fixed":"2024.10.3"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/authentik/BIT-authentik-2024-52289.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}],"schema_version":"1.9.0"}