CVE-2026-42998
OpenStack Keystone doesn't verify that the user supplied in the authentication request matches the owner of the application credential
描述
An issue was discovered in OpenStack Keystone before 29.0.2. The Keystone application credential authentication plugin does not verify that the user supplied in the authentication request matches the owner of the application credential. An attacker can authenticate with their own application credential ID and secret while specifying a different user's name and domain in the request body. Keystone issues a token attributed to the victim user. The impersonated token is project-scoped and carries the intersection of the application credential's roles and the victim's actual roles on the project. This enables audit evasion, reading the victim's credentials, and acting as the victim within shared projects.
如何修補 CVE-2026-42998
要修補 CVE-2026-42998,請將受影響套件升級到下列已修補版本。
- —升級至 27.0.2 或更新版本
CVE-2026-42998 正在被利用嗎?
低 — EPSS 為 0.3%,目前沒有觀察到大規模利用活動。
受影響套件(1)
- >= 14.0.0, < 27.0.2, >= 28.0.0, < 28.0.2, >= 29.0.0, < 29.0.2
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |