CVE-2026-49443

authentik: `UserSourceConnection.user` and `GroupSourceConnection.group` are changeable through the API

CVSS 8.8 HIGHEPSS 0.3%CWE-287

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 8.8EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

02 Jun 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

authentik is an open-source identity provider. Prior to versions 2025.12.6, 2026.2.4, and 2026.5.1, an attacker with the ability to change a source connection, and an account in one of the configured sources can log into any account. This issue has been patched in versions 2025.12.6, 2026.2.4, and 2026.5.1.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

goauthentik · authentik

Want to know if your infrastructure is exposed to this?

Talk to TrueHacking →

References

https://github.com/goauthentik/authentik/security/advisories/GHSA-wr38-7xg8-fqxr