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CVE-2026-44945— Cross-Cluster Impersonation Confused-Deputy Privilege Escalation

Quick assessment

Affected
SUSE Rancher
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

SUSE rancher是德国SUSE公司开源的一款一套容器管理平台。 SUSE Rancher 2.11.0至2.11.16之前版本、2.12.0至2.12.12之前版本、2.13.0至2.13.8之前版本和2.14.0至2.14.2之前版本存在安全漏洞，该漏洞源于模拟中间件（pkg/auth/requests/impersonate.go）问题，可能导致具有默认用户全局角色的已认证用户获得Rancher控制平面的完全管理访问权限，并传递到其管理的所有下游集群。

CVSS 9.1 · Critical EPSS 0.56% · P44

Affected Version Matrix 4

VendorProduct Version RangeStatus
SUSE Rancher 2.11.0< 2.11.16 affected
2.12.0< 2.12.12 affected
2.13.0< 2.13.8 affected
2.14.0< 2.14.2 affected
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I. Basic Information for CVE-2026-44945

Vulnerability Information
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Vulnerability Title
Cross-Cluster Impersonation Confused-Deputy Privilege Escalation
Source: CVE Program / CVE List V5
Vulnerability Description
A privilege escalation vulnerability exists in Rancher's impersonation middleware (pkg/auth/requests/impersonate.go). An authenticated Rancher user with the default user global role can gain full administrative access to the Rancher control plane and transitively to all downstream clusters it manages. This issue affects Rancher: from 2.11.0 before 2.11.16, from 2.12.0 before 2.12.12, from 2.13.0 before 2.13.8, and from 2.14.0 before 2.14.2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未有动机的代理或中间人(混淆代理)
Source: CVE Program / CVE List V5
Vulnerability Title
SUSE Rancher 服务端请求伪造漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SUSE rancher是德国SUSE公司开源的一款一套容器管理平台。 SUSE Rancher 2.11.0至2.11.16之前版本、2.12.0至2.12.12之前版本、2.13.0至2.13.8之前版本和2.14.0至2.14.2之前版本存在安全漏洞，该漏洞源于模拟中间件（pkg/auth/requests/impersonate.go）问题，可能导致具有默认用户全局角色的已认证用户获得Rancher控制平面的完全管理访问权限，并传递到其管理的所有下游集群。
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

Vendor Product Affected Versions CPE Subscribe
SUSE Rancher 2.11.0 ~ 2.11.16 -

II. Public POCs for CVE-2026-44945

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Qwen3.6-35B-A3B · 9389 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-44945

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Patches & Fixes for CVE-2026-44945 (1)

Vendor Advisories for CVE-2026-44945 (1)

Same Patch Batch · SUSE · 2026-08-05 · 5 CVEs total

CVE-2026-59675 7.5 HIGH Rancher Audit-Log Middleware Unauthenticated Memory Exhaustion Denial of Service
CVE-2026-25703 7.3 HIGH Potential information leakage from manager /network/graph API in NeuVector
CVE-2026-55998 5.3 MEDIUM Cluster Existence Oracle via Unauthenticated Import Endpoint
CVE-2026-55996 4.3 MEDIUM Unauthenticated Denial-of-Service via TLS SAN Stuffing in Rancher and cattle-cluster-agent

IV. Related Vulnerabilities

Same product: Rancher
Same vendor: SUSE
Same weakness: CWE-441

V. Comments for CVE-2026-44945

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