Vulnerability · Published May 29, 2026 · Assigned by redhat

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

Medium 6.3

In plain English

A medium-severity security flaw in Multicluster Engine for Kubernetes from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities).

Severity (CVSS 3.1)6.3Medium

Exploit odds (30 days)0.2%top 92.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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`.

Affected products (as reported)

Vendor	Product	Versions
Red Hat	Multicluster Engine for Kubernetes	see references

Weakness: CWE-201 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N

References

https://access.redhat.com/security/cve/CVE-2026-10101 vdb-entry, x_refsource_REDHAT
RHBZ#2483298 issue-tracking, x_refsource_REDHAT