CVE-2026-75033

EUVD-2026-70506

03.09.2026, 15:17

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.

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	7.7 HIGH	NETWORK	LOW	LOW	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Base Score

CVSS 3.x

EPSS Score

Percentile: 25.86%

Affected Products (NVD)

Vendor	Product	Version
suse	rancher	𝑥 < 2.15.1

𝑥

= Vulnerable software versions

Common Weakness Enumeration

CWE-639 - Authorization Bypass Through User-Controlled Key
The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

References

https://github.com/rancher/rancher/releases/tag/v2.15.1