CVE-2026-75033
Published:September 03, 2026
Updated:September 22, 2026
A flaw was found in Rancher Manager. Project Secrets were propagated into a namespace based only on its "field.cattle.io/projectId" annotation, without verifying that the referenced project belonged to the same downstream cluster. A user able to create namespaces on one cluster could set the annotation to a project ID from another cluster and have that project's secrets copied into a namespace under their control.
This issue affects Rancher: before 2.15.1.
Affected Packages
https://github.com/rancher/rancher.git (GITHUB):
Affected version(s) >=v0.4.0 <v2.15.1Fix Suggestion:
Update to version v2.15.1github.com/rancher/rancher (GO):
Affected version(s) >=v0.4.0 <v2.15.1Fix Suggestion:
Update to version v2.15.1Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.7
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Authorization Bypass Through User-Controlled Key
EPSS
Base Score:
0.21