CVE-2026-75033 Rancher: Cross-Cluster Secret Leakage via Namespace projectId Annotation Spoofing
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-75033?
CVE-2026-75033 is a high-severity vulnerability in SUSE Rancher, published on 3 Sep 2026.
Official description
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.
Weakness: CWE-639
Which versions are affected by CVE-2026-75033?
It affects 1 product.
Products include Suse Rancher.
How do I fix CVE-2026-75033?
No fix has been published for CVE-2026-75033 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-75033 being exploited?
There is no known exploitation of CVE-2026-75033 in the wild and no public exploit code.
Other vulnerabilities in SUSE Rancher
- CVE-2023-22647 Rancher vulnerable to Privilege Escalation via manipulation of Secrets
- CVE-2023-22651 Rancher Webhook is misconfigured during upgrade process
- CVE-2022-43757 Rancher: Exposure of sensitive fields
- CVE-2021-36782 Rancher: Plaintext storage and exposure of credentials in Rancher API and cluster.management.cattle.io object
- CVE-2021-36783 Rancher: Failure to properly sanitize credentials in cluster template answers