What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2024-08-20 · updated 2026-06-17
• Weakness: CWE-863

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.

Affected products

• projectcapsule capsule: through 0.7.0

References

• https://github.com/projectcapsule/capsule/commit/d620b0457ddec01616b8eab8512a10611611f584
• https://github.com/projectcapsule/capsule/security/advisories/GHSA-mq69-4j5w-3qwp

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