# CVE-2026-47724: Forgekeep nebula-mesh Missing Authorization in API Endpoints

Source: https://junglewise.ai/threats/cve-2026-47724-forgekeep-nebula-mesh-missing-authorization-in-api-endpoints  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-23. Updated: 2026-07-23  
License: CC BY 4.0 with a link back

CVE-2026-47724 · Severity: critical · CVSS 9.9 · Published 2026-07-23

nebula-mesh is a management tool for Slack Nebula virtual private networks. A security flaw allows any user with a standard API key to bypass permission checks and gain full administrative control over the entire system. This could allow an attacker to take over servers, modify firewall rules, or disable other users' access, potentially leading to a complete compromise of the private network.

Technologies: [Forgekeep Nebula-Mesh](https://junglewise.ai/threats/technologies/nebula-mesh), [github.com/juev/nebula-mesh (Go)](https://junglewise.ai/threats/technologies/github-com-juev-nebula-mesh). Vendors: [Forgekeep](https://junglewise.ai/threats/vendors/forgekeep), [Go](https://junglewise.ai/threats/vendors/go).

## Quick answers

**Is CVE-2026-47724 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-47724 being exploited in the wild.

**How severe is CVE-2026-47724?** Critical severity, with a CVSS score of 9.9, published 23 July 2026.

**Which products and versions are affected?** Forgekeep Nebula-Mesh < 0.3.4; github.com/juev/nebula-mesh (Go) < 0.3.4, SEMVER:introduced=0,fixed=0.3.4.

**Is there a fix for CVE-2026-47724?** Yes. github.com/juev/nebula-mesh (Go): upgrade to 0.3.4 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-47724 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-47724?** Check whether you run Forgekeep Nebula-Mesh or github.com/juev/nebula-mesh (Go) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- github.com/juev/nebula-mesh (Go): upgrade to 0.3.4 or later

  ```sh
  go get github.com/juev/nebula-mesh@v0.3.4
  ```


## Technical details

The vulnerability is a missing authorization check (CWE-862) within the `/api/v1/*` route surface. While the Web UI and CA-management endpoints implement proper gates, endpoints for hosts, networks, firewalls, and operators trust the bearer token alone without verifying resource ownership or admin status. An attacker with a low-privileged operator API key can exploit this to mint an admin API key, re-enroll and hijack victim hosts, or perform CRUD operations on any tenant's network resources. The fix in version 0.3.4 introduces uniform authorization gates (e.g., `isActiveAdmin`) across all affected API handlers.

## Affected products

- forgekeep nebula-mesh < 0.3.4

## Identifiers

- CVE-2026-47724
- GHSA-598g-h2vc-h5vg
- GO-2026-5139

## Timeline

- 2026-05-20: disclosed: Initial advisory publication
- 2026-05-24: patched: Fix committed to repository
- 2026-07-23: advisory: NVD publication date

## References

- [https://github.com/forgekeep/nebula-mesh/commit/9d8bcd7667ecd0c2975cc71fb35a02fe131f76f2](https://github.com/forgekeep/nebula-mesh/commit/9d8bcd7667ecd0c2975cc71fb35a02fe131f76f2)
- [https://github.com/forgekeep/nebula-mesh/security/advisories/GHSA-598g-h2vc-h5vg](https://github.com/forgekeep/nebula-mesh/security/advisories/GHSA-598g-h2vc-h5vg)

## Related threats

- [forgekeep nebula-mesh certificate revocation failure in agent](https://junglewise.ai/threats/cve-2026-61699-forgekeep-nebula-mesh-certificate-revocation-failure-in-agent)
- [forgekeep nebula-mesh insufficient session expiration in Web UI host creation](https://junglewise.ai/threats/cve-2026-55513-forgekeep-nebula-mesh-insufficient-session-expiration-in-web-ui)
- [forgekeep nebula-mesh resource exhaustion in OIDC login](https://junglewise.ai/threats/cve-2026-55512-forgekeep-nebula-mesh-resource-exhaustion-in-oidc-login)
- [forgekeep nebula-mesh cleartext storage of CA private key in memory](https://junglewise.ai/threats/cve-2026-53604-forgekeep-nebula-mesh-cleartext-storage-of-ca-private-key-in)
- [forgekeep nebula-mesh plaintext storage of operator session tokens](https://junglewise.ai/threats/cve-2026-53603-forgekeep-nebula-mesh-plaintext-storage-of-operator-session)