CVE-2025-23389— Rancher does not Properly Validate Account Bindings in SAML Authentication Enables User Impersonation on First Login
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I. Basic Information for CVE-2025-23389
Vulnerability Information
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Vulnerability Title
Rancher does not Properly Validate Account Bindings in SAML Authentication Enables User Impersonation on First Login
Source: NVD (National Vulnerability Database)
Vulnerability Description
A Improper Access Control vulnerability in SUSE rancher allows a local user to impersonate other identities through SAML Authentication on first login. This issue affects rancher: from 2.8.0 before 2.8.13, from 2.9.0 before 2.9.7, from 2.10.0 before 2.10.3.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
访问控制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Rancher 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Rancher是美国Rancher开源的一个开源容器管理平台，专为在生产环境中部署容器的组织而构建。 Rancher 2.8.0至2.8.13之前版本、2.9.0至2.9.7之前版本和2.10.0至2.10.3之前版本存在访问控制错误漏洞，该漏洞源于本地用户可以通过SAML身份验证在首次登录时冒充其他身份。
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-2025-23389
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Same Patch Batch · SUSE · 2025-04-11 · 6 CVEs total
| CVE-2025-23391 | 9.1 CRITICAL | Rancher: Restricted Administrator can change Administrator's passwords |
| CVE-2025-23388 | 8.2 HIGH | Unauthenticated stack overflow in /v3-public/authproviders API |
| CVE-2024-52280 | 7.7 HIGH | Users can issue watch commands for arbitrary resources |
| CVE-2024-52282 | 6.2 MEDIUM | Rancher Helm Applications may have sensitive values leaked |
| CVE-2025-23387 | 5.3 MEDIUM | Rancher's SAML-based login via CLI can be denied by unauthenticated users |
IV. Related Vulnerabilities
Same product: rancher
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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-284
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Avo: Broken Access Control: Unauthorized Execution of Arbitr - CVE-2026-41487
Langfuse: Improper role-based-access control in Langfuse LLM - CVE-2026-42278
UltraDAG: Smart Account Spending Policy Bypass via Pockets
V. Comments for CVE-2025-23389
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