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CVE-2024-39690— Capsule tenant owner with "patch namespace" permission can hijack system namespaces

Quick assessment

Affected
projectcapsule capsule
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.

Capsule是Project Capsule开源的一个 Kubernetes 的多租户和基于策略的框架。 Capsule v0.7.0版本存在安全漏洞，该漏洞源于租户所有者可以修补任何未被租户接管的任意命名空间，从而获得对该命名空间的控制权。

CVSS 8.5 · High EPSS 0.54% · P43

Possible ATT&CK Techniques 1 AI

T1098 · Account Manipulation
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I. Basic Information for CVE-2024-39690

Vulnerability Information
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Vulnerability Title
Capsule tenant owner with "patch namespace" permission can hijack system namespaces
Source: CVE Program / CVE List V5
Vulnerability Description
Capsule is a multi-tenancy and policy-based framework for Kubernetes. In Capsule v0.7.0 and earlier, the tenant-owner can patch any arbitrary namespace that has not been taken over by a tenant (i.e., namespaces without the ownerReference field), thereby gaining control of that namespace. Version 0.7.1 contains a patch.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
Capsule 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Capsule是Project Capsule开源的一个 Kubernetes 的多租户和基于策略的框架。 Capsule v0.7.0版本存在安全漏洞，该漏洞源于租户所有者可以修补任何未被租户接管的任意命名空间，从而获得对该命名空间的控制权。
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
projectcapsule capsule <= 0.7.0 -

II. Public POCs for CVE-2024-39690

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 7216 chars
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III. Intelligence Information for CVE-2024-39690

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Vendor Advisories for CVE-2024-39690 (1)

IV. Related Vulnerabilities

Same product: capsule
Same vendor: projectcapsule
Same weakness: CWE-863

V. Comments for CVE-2024-39690

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