CVE-2024-52289

HIGH EPSS 60.3%
Published Nov 21, 20241y ago · Modified Jun 17, 20262w ago
7.9 CVSS 4.0
High
Find Similar
Published Nov 21, 2024 1y ago
Last Modified Jun 17, 2026 2w ago

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 `\.`.

CVSS Details

Base Score
7.9
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
60.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-185

Affected Products 2

VendorProductVersionRange
goauthentikauthentik* <2024.8.5
goauthentikauthentik*≥2024.10.0  –  <2024.10.3

References 4

  • github.com https://github.com/goauthentik/authentik/commit/85bb638243c8d7ea42ddd3b15b3f51a90d2b8c54
    Patch
  • github.com https://github.com/goauthentik/authentik/security/advisories/GHSA-3q5w-6m3x-64gj
    Vendor Advisory
  • vicarius.io https://www.vicarius.io/vsociety/posts/cve-2024-52289-detect-authentik-vulnerability
  • vicarius.io https://www.vicarius.io/vsociety/posts/cve-2024-52289-mitigate-authentik-vulnerability

Remediation

  • github.com https://github.com/goauthentik/authentik/commit/85bb638243c8d7ea42ddd3b15b3f51a90d2b8c54
    Patch