CVE-2026-9087
| Summary |
A flaw was found in Keycloak. The cross-session verification proof is keyed only by (local userId,
idpAlias) and is not bound to the upstream identity that was actually verified, so a second upstream account on the same IdP can consume it and get linked to the victim's local account.
|
| Publication Date |
May 21, 2026, 2:16 a.m. |
| Registration Date |
May 21, 2026, 4:10 a.m. |
| Last Update |
May 21, 2026, 2:32 a.m. |
|
CVSS3.1 : MEDIUM
|
| スコア |
6.4
|
| Vector |
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N |
| 攻撃元区分(AV) |
ネットワーク |
| 攻撃条件の複雑さ(AC) |
高 |
| 攻撃に必要な特権レベル(PR) |
低 |
| 利用者の関与(UI) |
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) |
なし |
Related information, measures and tools
Common Vulnerabilities List