Secuno
ENNL
Book demo

CVE-2026-10059

Privilege escalation

9.1 CRITICALEPSS 0.64%
  1. Published5 Aug 2026

Description

A flaw was found in the Multicluster Engine for Kubernetes ClusterCurator controller. A tenant administrator with namespace-scoped privileges can exploit this vulnerability by creating a namespaced ClusterCurator. This action inadvertently grants the tenant administrator the ability to mint a token for a ServiceAccount with cluster-wide administrative authority. This leads to a privilege escalation, allowing the tenant administrator to gain full control over the cluster.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredHigh
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

CVE-2026-620229.8
Unauthenticated Privilege Escalation in Tonda Membership <= 1.0.1…
CVE-2026-398019.8
Subscriber Privilege Escalation in AIWU <= 1.5.9…
CVE-2026-963418.2
Incorrect Privilege Assignment vulnerability in WPMU DEV Forminator forminator allows…
CVE-2026-1066109.8
Incorrect Privilege Assignment vulnerability in miniOrange miniorange otp verification…
CVE-2026-955948.1
Incorrect Privilege Assignment vulnerability in Cozy Vision Technologies Pvt. Ltd. SMS…
CVE-2026-397758.8
Subscriber Privilege Escalation in JobZilla - Job Board WordPress Theme <= 2.2…

Frequently asked

Is CVE-2026-10059 being actively exploited?

CVE-2026-10059 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.64%.

How severe is CVE-2026-10059?

CVE-2026-10059 has a CVSS 3.1 base score of 9.1, rated critical. EPSS estimates a 0.64% probability of exploitation.

How do I fix CVE-2026-10059?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-10059 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

Get Patch this first every Monday

Five vulnerabilities that matter this week, ranked on real exploitation. Plain language, one email, no spam.

You can unsubscribe with one click from every issue. We handle your details as described in our privacy policy.

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.