#VU112089 Improper authentication in authentik - CVE-2025-52553

Vulnerability identifier: #VU112089

Vulnerability risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2025-52553

CWE-ID: CWE-287

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
authentik
Other software / Other software solutions

Vendor: Authentik Security Inc

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to the application does not properly invalidate session tokens passed via URL after successful authorization to a RAC endpoint. A remote attacker can intercept or guess the token and gain unauthorized access to the application. 

Mitigation
Install updates from vendor's website.

Vulnerable software versions

authentik: 2025.2.0, 2025.2.1, 2025.2.2, 2025.2.3, 2025.2.4, 2025.4.0, 2025.4.1, 2025.4.2, 2025.6.0, 2025.6.1, 2025.6.2

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External links
https://github.com/goauthentik/authentik/commit/0e07414e9739b318cff9401a413a5fe849545325
https://github.com/goauthentik/authentik/commit/65373ab21711d58147b5cb9276c5b5876baaa5eb
https://github.com/goauthentik/authentik/commit/7100d3c6741853f1cfe3ea2073ba01823ab55caa
https://github.com/goauthentik/authentik/security/advisories/GHSA-wr3v-9p2c-chx7

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.