CVE-2026-56742
Cilium: Namespaced HTTPRoutes can redirect traffic to other namespaces
8.9
HIGH
CVSS 3.1
EPSS 0.17%
描述
Cilium is a networking, observability, and security solution. Prior to 1.17.17, 1.18.11, and 1.19.5, Cilium clusters using Gateway API allow users with permissions to create or update namespaced HTTPRoutes to mirror HTTP traffic to any Service in any namespace, bypassing the ReferenceGrant authorization mechanism. Gateway API functionality is disabled by default. This issue is fixed in versions 1.17.17, 1.18.11, and 1.19.5.
如何修補 CVE-2026-56742
要修補 CVE-2026-56742,請將受影響套件升級到下列已修補版本。
- —升級至 1.17.17 或更新版本
- —升級至 1.17.17 或更新版本
- —升級至 1.17.17 或更新版本
CVE-2026-56742 正在被利用嗎?
低 — EPSS 為 0.2%,目前沒有觀察到大規模利用活動。
受影響套件(3)
- from 0, < 1.17.17, >= 1.18.0, < 1.18.11, >= 1.19.0, < 1.19.5
- from 0, < 1.17.17, >= 1.18.0, < 1.18.11, >= 1.19.0, < 1.19.5
- from 0, < 1.17.17, >= 1.18.0, < 1.18.11, >= 1.19.0, < 1.19.5
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.9 | CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L |
參考連結(9)
- WEBgithub.com/cilium/cilium/commit/7422068aff67ac77c7dcc57aa5b9240c91333deb
- WEBgithub.com/cilium/cilium/commit/e0b1cef513ff910323f3743e9f3e3d86721e4857
- WEBgithub.com/cilium/cilium/commit/f23929cff682d6ed0dc158070812cb302fc0032b
- WEBgithub.com/cilium/cilium/commit/fd47963ea394d5e8fa4a88c40a79063430c512ca