GHSA-28g7-896h-695v

    Dashboard / Vulnerabilities / GHSA-28g7-896h-695v

    GHSA-28g7-896h-695v

    Published: 24 Apr 2024Last Modified: 10 Sept 2026

    Summary: Rancher's Failure to delete orphaned role bindings does not revoke project level access from group based authentication

    Details: ### Impact This vulnerability only affects customers using group based authentication in Rancher versions up to and including 2.4.17, 2.5.11 and 2.6.2. When removing a Project Role associated to a group from a project, the bindings that grant access to cluster scoped resources for those subjects do not get deleted. This happens due to an incomplete authorization logic check. A user who is a member of an affected group with authenticated access to Rancher could use this to access resources they should no longer have access to. The exposure level will depend on the original permission level granted to the affected project role. ### Patches Patched versions include releases 2.4.18, 2.5.12, 2.6.3 and later versions. ### Workarounds Limit access in Rancher to trusted users. There is not a direct mitigation besides upgrading to the patched Rancher versions. ### References Cluster and project roles documentation for Rancher [2.6](https://rancher.com/docs/rancher/v2.6/en/admin-settings/rbac/cluster-project-roles/), [2.5](https://rancher.com/docs/rancher/v2.5/en/admin-settings/rbac/cluster-project-roles/) and [2.4](https://rancher.com/docs/rancher/v2.0-v2.4/en/admin-settings/rbac/cluster-project-roles/). ### For more information If you have any questions or comments about this advisory: * Reach out to [SUSE Rancher Security team](https://github.com/rancher/rancher/security/policy) for security related inquiries. * Open an issue in [Rancher](https://github.com/rancher/rancher/issues/new/choose) repository. * Verify our [support matrix](https://www.suse.com/suse-rancher/support-matrix/all-supported-versions/) and [product support lifecycle](https://www.suse.com/lifecycle/).

    References: https://github.com/rancher/rancher/security/advisories/GHSA-28g7-896h-695v, https://nvd.nist.gov/vuln/detail/CVE-2021-36775, https://bugzilla.suse.com/show_bug.cgi?id=1189120, https://github.com/rancher/rancher

    Affected packages

    Package

    Name: github.com/rancher/rancher

    Purl: pkg:golang/github.com/rancher/rancher

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -2.4.18

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    GHSA-28g7-896h-695v | CVE-DB