CVE-2026-41485
Kyverno Controller Denial of Service via forEach Mutation Panic
描述
Kyverno is a policy engine designed for cloud native platform engineering teams. Prior to versions 1.17.2 and 1.16.4, an unchecked type assertion in the `forEach` mutation handler allows any user with permission to create a `Policy` or `ClusterPolicy` to crash the cluster-wide background controller into a persistent CrashLoopBackOff. The same bug also causes the admission controller to drop connections and block all matching resource operations. The crash loop persists until the policy is deleted. The vulnerability is confined to the legacy engine, and CEL-based policies are unaffected. Versions 1.17.2 and 1.16.4 fix the issue.
如何修補 CVE-2026-41485
要修補 CVE-2026-41485,請將受影響套件升級到下列已修補版本。
- —升級至 1.16.4 或更新版本
- —升級至 1.16.4 或更新版本
- —升級至 1.16.4 或更新版本
CVE-2026-41485 正在被利用嗎?
低 — EPSS 為 0.4%,目前沒有觀察到大規模利用活動。
受影響套件(3)
- from 0, < 1.16.4, >= 1.17.0, < 1.17.2
- >= 1.13.0, < 1.16.4
- >= 1.13.0, < 1.16.4, >= 1.17.0-rc.1, < 1.17.2
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H |