CVE-2026-41052 Rancher Privilege Escalation from Project Owner to Host
Users with Project Owner role can escalate privileges to host level in Rancher, requiring an upgrade to patched versions.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-41052?
CVE-2026-41052 is a critical vulnerability in SUSE Rancher, published on 29 Jun 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Improper privilege handling could be used by users with Project Owner role to escalate privileges, in Rancher versions 2.14 before 2.14.2, 2.13 before 2.13.6, and 2.12 before 2.12.10.
Weakness: CWE-305
Which versions are affected by CVE-2026-41052?
9 open source packages ship an affected version, including github.com/rancher/rancher. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/rancher/rancher Go | All versions | 0.0.0-20260513182521-2800aaac25b5 |
github.com/rancher/rancher Go | All versions | 0.0.0-20260513182521-2800aaac25b5 |
github.com/rancher/rancher Go | All versions | 0.0.0-20260513182521-2800aaac25b5 |
github.com/rancher/rancher Go | From 2.12.0 | 2.12.10 |
github.com/rancher/rancher Go | From 2.12.0 | 2.12.10 |
github.com/rancher/rancher Go | From 2.13.0 | 2.13.6 |
3 more packages
github.com/rancher/rancher Go | From 2.13.0 | 2.13.6 |
github.com/rancher/rancher Go | From 2.14.0 | 2.14.2 |
github.com/rancher/rancher Go | From 2.14.0 | 2.14.2 |
Products include Suse Rancher.
How do I fix CVE-2026-41052?
Upgrade github.com/rancher/rancher to a fixed version for your release line: 0.0.0-20260513182521-2800aaac25b5, 2.12.10, 2.13.6 or 2.14.2.
Is CVE-2026-41052 being exploited?
There is no known exploitation of CVE-2026-41052 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
Sources
Also known as GHSA-vx8h-4prv-g744, GO-2026-5876.