CVE-2026-39350

MEDIUM5.4EPSS 0.01%

Istio: AuthorizationPolicy serviceAccounts regex injection via unescaped dots

發布日:2026/4/16修改日:2026/4/18
也稱為:GHSA-9gcg-w975-3rjhCGA-f888-6vc7-8f3m

描述

### Impact The `serviceAccounts` and `notServiceAccounts` fields in AuthorizationPolicy incorrectly interpret dots (`.`) as a regular expression matcher. Because `.` is a valid character in a service account name, an `AuthorizationPolicy` ALLOW rule targeting SA e.g. `cert-manager.io` also matches `cert-manager-io`, `cert-managerXio`, etc. A DENY rule targeting the same name fails to block those variants. ### Patches Fixes are available in 1.29.2, 1.28.6, and 1.27.9 ### Workarounds None

受影響套件(1)

  • Go/istio.io/istio>= 0.0.0-20241024090207-0bf27d49ba4b, < 0.0.0-20260403004500-692e460c342d

CVSS 分數

來源版本嚴重程度向量
osvCVSS 3.1MEDIUM5.4CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

參考連結(4)