CVE-2026-41050— Helm impersonation bypass of `RESTClientGetter` retains `cluster-admin` during template rendering
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I. Basic Information for CVE-2026-41050
Vulnerability Information
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Vulnerability Title
Helm impersonation bypass of `RESTClientGetter` retains `cluster-admin` during template rendering
Source: NVD (National Vulnerability Database)
Vulnerability Description
Fleet's Helm deployer did not fully apply ServiceAccount impersonation in two code paths, allowing a tenant with git push access to a Fleet-monitored repository to read secrets from any namespace on every downstream cluster targeted by their `GitRepo`.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制不正确
Source: NVD (National Vulnerability Database)
Vulnerability Title
Fleet 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Fleet是Fleet Device Management开源的一个设备管理平台，支持多种操作系统和设备，帮助 IT 和安全团队进行设备管理、漏洞报告、MDM 等操作。 Fleet存在安全漏洞，该漏洞源于Helm部署器在两个代码路径中未完全应用ServiceAccount模拟，允许对Fleet监控仓库具有git推送权限的租户读取每个下游集群目标GitRepo中任何命名空间的秘密。
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-2026-41050
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Same Patch Batch · SUSE · 2026-05-13 · 3 CVEs total
| CVE-2026-25705 | 8.4 HIGH | Rancher Extensions have arbitrary file access via path traversal |
| CVE-2026-41051 | 5.0 MEDIUM | csync2 uses insecure temporary directories when compiled with C99 or later |
IV. Related Vulnerabilities
Same product: Rancher
- CVE-2026-25705
Rancher Extensions have arbitrary file access via path trave - 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
Same vendor: SUSE
- CVE-2026-41051
csync2 uses insecure temporary directories when compiled wit - CVE-2026-25705
Rancher Extensions have arbitrary file access via path trave - 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
Same weakness: CWE-863
- CVE-2026-44633
Live Helper Chat: REST API chat update accepts arbitrary cha - CVE-2026-45148
SiYuan: Broken access control in SiYuan publish-mode Readers - CVE-2025-15023
Improper Access Control in Yordam Informatics' Library Autom - CVE-2026-44283
etcd: Read access via PrevKv in etcd transactions may bypass - CVE-2026-41888
Distribution: Tag deletion bypasses `storage.delete.enabled`
V. Comments for CVE-2026-41050
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