# NetBird has Race Condition on UpdateUser Function, Resulting in Privilege Escalation From Admin to Owner

Source: https://junglewise.ai/threats/netbird-has-race-condition-on-updateuser-function-resulting-in-4007a736  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-04-01  
License: CC BY 4.0 with a link back

Severity: low · CVSS 3.1 · Published 2026-04-01

NetBird has Race Condition on UpdateUser Function, Resulting in Privilege Escalation From Admin to Owner

Technologies: [github.com/netbirdio/netbird (Go)](https://junglewise.ai/threats/technologies/github-com-netbirdio-netbird). Vendors: [Go](https://junglewise.ai/threats/vendors/go).

## Quick answers

**Is This vulnerability exploited in the wild?** No. Junglewise Threat Intelligence has no report of This vulnerability being exploited in the wild.

**How severe is This vulnerability?** Low severity, with a CVSS score of 3.1, published 1 April 2026.

**Which products and versions are affected?** github.com/netbirdio/netbird (Go) SEMVER:introduced=0,fixed=0.65.3.

**Is there a fix for This vulnerability?** Yes. github.com/netbirdio/netbird (Go): upgrade to 0.65.3 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected?** Check whether you run github.com/netbirdio/netbird (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/netbirdio/netbird (Go): upgrade to 0.65.3 or later

  ```sh
  go get github.com/netbirdio/netbird@v0.65.3
  ```


## Affected products

- github.com/netbirdio/netbird (Go) SEMVER:introduced=0,fixed=0.65.3

## Related threats

- [GO-2026-5646 - NetBird has Race Condition on UpdateUser Function, Resulting in Privilege Escalation From Admin to…](https://junglewise.ai/threats/go-2026-5646-netbird-has-race-condition-on-updateuser-function-21e6ad5c)
- [GO-2025-4040 - NetBird VPN does not remove the default password of an admin account in github.com/netbirdio/netbird](https://junglewise.ai/threats/cve-2025-10678-netbird-vpn-does-not-remove-the-default-password-of-an-admin)
- [GO-2024-3057 - NetBird uses a static initialization vector (IV) in github.com/netbirdio/netbird](https://junglewise.ai/threats/cve-2024-41260-netbird-uses-a-static-initialization-vector-iv)