CVE-2026-75035 Rancher: ext.cattle.io/v1 Token store: cross-user token disclosure via label-selector scoping bypass
Authenticated users can bypass token store scoping to view other users' token metadata and salted hashes, requiring an upgrade to Rancher.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-75035?
CVE-2026-75035 is a high-severity vulnerability in SUSE Rancher, published on 3 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A flaw was found in Rancher Manager. When a non-administrative caller supplied a label selector naming a different user, the ext.cattle.io/v1 Token store dropped its internal owner filter instead of returning an empty result. Any authenticated user could therefore list and watch every other user's tokens, disclosing token metadata and the stored salted hash of the bearer token.
This issue affects Rancher: before 2.15.1.
Weakness: CWE-639
Which versions are affected by CVE-2026-75035?
It affects 1 product.
Products include Suse Rancher.
How do I fix CVE-2026-75035?
No fix has been published for CVE-2026-75035 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-75035 being exploited?
There is no known exploitation of CVE-2026-75035 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