#VU106383 Session Fixation in authentik - CVE-2025-29928

Vulnerability identifier: #VU106383

Vulnerability risk: High

CVSSv4.0: 4.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2025-29928

CWE-ID: CWE-384

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 compromise the target system.

The vulnerability exists due to the session fixation issue. A remote attacker can continue to have access to the target application.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

authentik: 2024.12.0 - 2025.2.2

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External links
https://github.com/goauthentik/authentik/commit/71294b7deb6eb5726a782de83b957eaf25fc4cf6
https://github.com/goauthentik/authentik/security/advisories/GHSA-p6p8-f853-9g2p

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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.