| Summary | 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. |
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| Publication Date | June 3, 2026, 6:16 a.m. |
| Registration Date | June 4, 2026, 4:16 a.m. |
| Last Update | June 3, 2026, 11:16 p.m. |
| CVSS3.1 : HIGH | |
| スコア | 8.8 |
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| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| 攻撃元区分(AV) | ネットワーク |
| 攻撃条件の複雑さ(AC) | 低 |
| 攻撃に必要な特権レベル(PR) | 低 |
| 利用者の関与(UI) | 不要 |
| 影響の想定範囲(S) | 変更なし |
| 機密性への影響(C) | 高 |
| 完全性への影響(I) | 高 |
| 可用性への影響(A) | 高 |