CVE-2021-36784— Privilege escalation for users with create/update permissions in Global Roles
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I. Basic Information for CVE-2021-36784
Vulnerability Information
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Vulnerability Title
Privilege escalation for users with create/update permissions in Global Roles
Source: NVD (National Vulnerability Database)
Vulnerability Description
A Improper Privilege Management vulnerability in SUSE Rancher allows users with the restricted-admin role to escalate to full admin. This issue affects: SUSE Rancher Rancher versions prior to 2.5.13; Rancher versions prior to 2.6.4.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
特权管理不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Rancher Labs Rancher 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Rancher Labs Rancher是美国Rancher Labs公司的一套开源的企业级容器管理平台。 Rancher Labs Rancher 2.5.13 版本之前的 2.5.x 版本和 2.6.4 版本之前的 2.6.x 版本存在安全漏洞，该漏洞源于存在一个不当权限管理漏洞，允许具有受限管理员角色的用户升级为完全管理员。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2021-36784
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://bugzilla.suse.com/show_bug.cgi?id=1193991x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2021-36784
Same Patch Batch · SUSE · 2022-05-02 · 3 CVEs total
| CVE-2021-36778 | 7.3 HIGH | Exposure of repository credentials to external third-party sources |
| CVE-2021-4200 | 5.4 MEDIUM | Write access to the Catalog for any user when restricted-admin role is enabled |
IV. Related Vulnerabilities
Same product: Rancher
- CVE-2025-62879
Rancher Backup Operator pod's logs leak S3 tokens - CVE-2025-62878
Local Path Provisioner vulnerable to Path Traversal via para - CVE-2025-67601
Rancher CLI skips TLS verification on Rancher CLI login comm - CVE-2024-58269
Rancher exposes sensitive information through audit logs - CVE-2023-32199
Rancher user retains access to clusters despite Global Role
Same vendor: SUSE
- CVE-2026-25702
nftables disabled due to incorrect kernel backport - CVE-2025-62879
Rancher Backup Operator pod's logs leak S3 tokens - CVE-2025-62878
Local Path Provisioner vulnerable to Path Traversal via para - CVE-2025-67601
Rancher CLI skips TLS verification on Rancher CLI login comm - CVE-2025-67860
NeuVector scanner insecurely handles passwords as command ar
Same weakness: CWE-269
- CVE-2026-42562
Plainpad: Privilege Escalation via Writable Admin Field in P - CVE-2026-41163
bubblewrap vulnerable to privilege escalation in setuid mode - CVE-2026-44987
SysReptor: Privilege Escalation from User Admin to Superuser - CVE-2026-42185
People: Privilege Escalation via Missing Role Ceiling in Mai - CVE-2026-40001
Local privilege escalation vulnerability in ZTE PROCESS Guar
V. Comments for CVE-2021-36784
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