Multicloud-operators-channel: multicloud-operators-channel: cross-namespace secret and configmap mutation via spec.secretref.namespace confused deputy

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-64927
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-12 02:16:37 UTC
Updated2026-08-26 23:17:15 UTC
DescriptionA flaw was found in the multicloud-operators-channel component. This vulnerability allows a user with specific permissions to manipulate how the system handles sensitive information, known as Secrets, across different parts of the system (namespaces). By exploiting this, an attacker can modify these Secrets in unauthorized areas. This could lead to unauthorized access to information or elevated privileges within the system.

Risk And Classification

Primary CVSS: v3.1 6.4 MEDIUM from [email protected]

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

EPSS: 0.001430000 probability, percentile 0.038540000 (date 2026-08-26)

Problem Types: CWE-639 | CWE-639 Authorization Bypass Through User-Controlled Key

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
3.1CNACVSS6.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Red Hat Red Hat Advanced Cluster Management For Kubernetes 2.13 unaffected 1787259310 * rpm Not specified
CNA Red Hat Red Hat Advanced Cluster Management For Kubernetes 2.15 unaffected 1787238600 * rpm Not specified
CNA Red Hat Red Hat Advanced Cluster Management For Kubernetes 2.17 unaffected 1787242099 * rpm Not specified

References

ReferenceSourceLinkTags
bugzilla.redhat.com/show_bug.cgi [email protected] bugzilla.redhat.com
access.redhat.com/security/cve/CVE-2026-64927 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2026:60389 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2026:60390 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2026:60386 [email protected] access.redhat.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

SourceTimeEvent
CNA2026-08-11T00:00:00.000ZReported to Red Hat.
CNA2026-08-11T00:00:00.000ZMade public.

Workarounds

CNA: Restrict the creation of `Channel` resources to trusted administrators within Red Hat Advanced Cluster Management. This limits the attack surface by preventing unauthorized tenants from exploiting the confused deputy vulnerability in the `multicloud-operators-channel` component.

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