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CVE-2026-41013— Tenant-controlled comma smuggles arbitrary CIFS mount options

Quick assessment

Affected
CloudFoundry Foundation smb-volume-release
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

CloudFoundry CF Deployment 是CloudFoundry基金会的一个代码部署组件。 CloudFoundry CF Deployment存在安全漏洞，该漏洞源于SMB卷挂载处理中输入验证绕过，可能导致低权限CF空间开发者通过绕过挂载选项白名单注入任意内核CIFS挂载选项，实现权限提升和安全控制绕过。

AI Predicted 8.1 Difficulty: Moderate EPSS 0.42% · P35

Affected Version Matrix 2

VendorProduct Version RangeStatus
CloudFoundry Foundation CF Deployment < 56.0.0 affected
CloudFoundry Foundation smb-volume-release < 3.60.0 affected
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I. Basic Information for CVE-2026-41013

Vulnerability Information
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Vulnerability Title
Tenant-controlled comma smuggles arbitrary CIFS mount options
Source: CVE Program / CVE List V5
Vulnerability Description
Input validation bypass in SMB volume mount handling in CloudFoundry Foundation diego-release allows low-privileged CF space developer to inject arbitrary kernel CIFS mount options via bypassing the mount-option allowlist, enabling privilege escalation and security control bypass on multi-tenant Diego cells. Affected versions: smb-volume-release: All versions prior to v3.60.0 CF Deployment: All versions prior to v56.0.0
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
参数注入或修改
Source: CVE Program / CVE List V5
Vulnerability Title
CloudFoundry CF Deployment 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
CloudFoundry CF Deployment 是CloudFoundry基金会的一个代码部署组件。 CloudFoundry CF Deployment存在安全漏洞，该漏洞源于SMB卷挂载处理中输入验证绕过，可能导致低权限CF空间开发者通过绕过挂载选项白名单注入任意内核CIFS挂载选项，实现权限提升和安全控制绕过。
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
CloudFoundry Foundation smb-volume-release 0 ~ 3.60.0 -
CloudFoundry Foundation CF Deployment 0 ~ 56.0.0 -

II. Public POCs for CVE-2026-41013

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III. Intelligence Information for CVE-2026-41013

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Security Blog Posts for CVE-2026-41013 (1)

IV. Related Vulnerabilities

Same vendor: CloudFoundry Foundation
Same weakness: CWE-88