7.1

CVE-2026-40166

authentik: Non-admin user can retrieve confidential OAuth client_secret via /api/v3/oauth2/access_tokens/

authentik is an open-source identity provider. In versions prior to 2025.12.5 and 2026.2.0-rc1 through 2026.2.2, authenticated non-admin users with at least one OAuth2 access token can retrieve the client_secret of confidential OAuth2 providers they have previously authenticated against, exposing sensitive information to users without the correct permissions. This logic is GET /api/v3/oauth2/access_tokens/. The API response includes a nested provider object containing client_id and client_secret for providers configured with client_type: confidential, which should not be accessible to low-privilege users. This issue has been fixed in versions 2025.12.5 and 2026.2.3.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
Herstellergoauthentik
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Produkt authentik
Version < 2025.12.5
Status affected
Version >= 2026.2.0-rc1, < 2026.2.3
Status affected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.34% 0.254
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
a0819718-46f1-4df5-94e2-005712e83aaa 7.1 0 0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://github.com/goauthentik/authentik/releases/tag/version%2F2025.12.5
x_refsource_MISC
https://github.com/goauthentik/authentik/security/advisories/GHSA-hhpc-rqgm-pxj4
x_refsource_CONFIRM
https://github.com/goauthentik/authentik/releases/tag/version%2F2026.2.3
x_refsource_MISC