Rancher Privilege Escalation from Project Owner to Host

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.

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.

Source published

29 Jun 2026 15:41:56 UTC

Source modified

30 Jun 2026 03:55:34 UTC

Observed here

23 Oct 2026 15:48:27 UTC

Source terms

CVE Program Terms of Use

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CVSS 4.0 · 9.4 CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

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.

Source published

29 Jun 2026 16:16:39 UTC

Source modified

25 Oct 2026 21:10:00 UTC

Observed here

27 Oct 2026 10:10:07 UTC

Source terms

NIST NVD usage terms; underlying source attribution retained

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This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: nvd · NIST NVD usage terms; underlying source attribution retained. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 4.0 · [email protected] · Secondary · 9.4 CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS 3.1 · [email protected] · Primary · 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

### Impact A vulnerability has been identified in Rancher Manager that allows users assigned the Project Owner role to modify Pod Security Admission (PSA) labels on namespaces within their projects. Under the default role configuration, an attacker with the following access pattern can exploit this issue: 1. **Cluster Access:** The user is granted Cluster Member access. 2. **Project Ownership:** The user creates or is assigned ownership of a project. 3. **Namespace Creation:** The user creates a namespace within that project. 4. **PSA Modification:** The user modifies the namespace PSA configuration to use the privileged profile. 5. **Privilege Escalation:** The user deploys privileged workloads within the namespace. As outlined in the [Kubernetes Pod Security Standards](https://kubernetes.io/docs/concepts/security/pod-security-standards/) documentation, `privileged` containers disable core Kubernetes security protections, allowing workloads to bypass standard container isolation boundaries. This can result in privilege escalation within the cluster environment. Potential impacts include: - Deployment of privileged containers - Access to host-level resources - Container breakout - Cluster privilege escalation - Compromise of workloads running on affected nodes Please refer to the associated MITRE ATT&CK techniques for further information about this category of attack: - [Deploy Container](https://attack.mitre.org/techniques/T1610/) - [Escape to Host](https://attack.mitre.org/techniques/T1611/) - [Exploitation for Privilege Escalation](https://attack.mitre.org/techniques/T1068) Reference: [Kubernetes Pod Security Standards — Privileged Profile](https://kubernetes.io/docs/concepts/security/pod-security-standards/#privileged) ### Patches This vulnerability is resolved by modifying the `project-owner` role to explicitly define the allowed verbs for `projects` resources instead of using the wildcard `(*)` permission. The updated role configuration removes access to the `updatepsa` verb. This prevents project owners from modifying PSA settings in a manner that could enable privilege escalation. Patched versions of Rancher include releases `v2.12.10`, `v2.13.6`, and `v2.14.2`. ### Workarounds If upgrading is not immediately possible, administrators should create a custom project role based on the existing Project Owner role, while removing unrestricted wildcard permissions for project resources. The allowed verbs for projects should be restricted to: “`get`, `update`, `delete`, `patch`, `create`, `list`, `watch`, `deletecollection`” instead of “`*`”. This prevents access to the `updatepsa` capability that enables the privilege escalation path. ### References If you have any questions or comments about this advisory: - Reach out to the [SUSE Rancher Security team](https://github.com/rancher/rancher/security/policy) for security related inquiries. - Open an issue in the [Rancher](https://github.com/rancher/rancher/issues/new/choose) repository. - Verify with our [support matrix](https://www.suse.com/suse-rancher/support-matrix/all-supported-versions/) and [product support lifecycle](https://www.suse.com/lifecycle/).

Source published

1 Jul 2026 20:57:49 UTC

Source modified

10 Sep 2026 03:51:12 UTC

Observed here

24 Oct 2026 13:19:41 UTC

Source terms

GitHub Advisory Database · CC-BY-4.0

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This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · GitHub Advisory Database · CC-BY-4.0. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS_V3 · CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H

CVSS_V4 · CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Publisher rating · CRITICAL

Rancher has Privilege Escalation from Project Owner to Host in github.com/rancher/rancher. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. (If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.) The additional affected modules and versions are: github.com/rancher/rancher from v2.12.0 before v2.12.10, from v2.13.0 before v2.13.6, from v2.14.0 before v2.14.2.

Source published

7 Jul 2026 15:26:37 UTC

Source modified

22 Jul 2026 20:59:36 UTC

Observed here

24 Oct 2026 13:19:41 UTC

Source terms

OSV · upstream source license applies

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · OSV · upstream source license applies. Source text is retained; field grouping and change labels are provided by ChangeIntel.