CVE-2026-10101 MEDIUM

CVE-2026-10101: Assisted-service: assisted-service: infraenv status leaks referenced pull-secret contents to namespace view users

Vendor Red Hat
Product Multicluster Engine for Kubernetes
Weakness CWE-201
Published May 29, 2026
Last update July 2, 2026

CVSS base score

6.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction Required
Confidentiality High
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N

What the vulnerability does

01Description

ACM/MCE assisted-service writes raw referenced pull-secret contents into `InfraEnv.status.conditions[].message` when pull-secret validation fails. A namespace principal with the stock `view` ClusterRole cannot directly read Secrets, but can read `InfraEnv` objects and recover the referenced Secret's `.dockerconfigjson` data from status. This bypasses the Kubernetes/OpenShift RBAC separation between read-only namespace viewers and Secret readers. In the reproduced proof, the same ServiceAccount was denied `get` and `list` on Secrets, but recovered synthetic pull-secret `username`, `password`, `email`, and base64 `auth` fields through `InfraEnv.status`.

Key dates

02Disclosure timeline

May 29, 2026 CVE published
July 2, 2026 Record updated