CVE-2026-66799

high Red Hat
CVSS v3 Base Score
7.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Confidentiality
Low
Integrity
High
Availability
None
Published: August 11, 2026 (26 days ago)
Last Modified: August 11, 2026
Vendor: Red Hat
Source: REDHAT

Description

A flaw was found in the cluster-backup-operator. A privileged user with administrative access to a specific namespace could exploit a vulnerability in the backup restoration process. This flaw allows them to redirect sensitive information, such as cloud provider credentials and access tokens, from backup operations into other namespaces, including those they control. This could lead to unauthorized access to critical system resources and the disclosure of confidential data.

CWE

CWE-863

Affected Products

Red Hat Advanced Cluster Management for Kubernetes 2

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov