# CVE-2026-33062: GO-2026-4756 - free5GC NRF Discovery EncodeGroupId Function Panics on Malformed group-id-list Parameter in github.com/free5gc/nrf

Source: https://junglewise.ai/threats/cve-2026-33062-free5gc-nrf-discovery-encodegroupid-function-panics-on-malformed  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-03-23  
License: CC BY 4.0 with a link back

CVE-2026-33062 · Severity: medium · CVSS 4 · Published 2026-03-23

free5GC NRF Discovery EncodeGroupId Function Panics on Malformed group-id-list Parameter in github.com/free5gc/nrf

Technologies: [github.com/free5gc/nrf (Go)](https://junglewise.ai/threats/technologies/github-com-free5gc-nrf). Vendors: [Go](https://junglewise.ai/threats/vendors/go).

## Quick answers

**Is CVE-2026-33062 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-33062 being exploited in the wild.

**How severe is CVE-2026-33062?** Medium severity, with a CVSS score of 4, published 23 March 2026.

**Which products and versions are affected?** github.com/free5gc/nrf (Go) SEMVER:introduced=0,fixed=1.4.2.

**Is there a fix for CVE-2026-33062?** Yes. github.com/free5gc/nrf (Go): upgrade to 1.4.2 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2026-33062?** Check whether you run github.com/free5gc/nrf (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/free5gc/nrf (Go): upgrade to 1.4.2 or later

  ```sh
  go get github.com/free5gc/nrf@v1.4.2
  ```


## Affected products

- github.com/free5gc/nrf (Go) SEMVER:introduced=0,fixed=1.4.2

## Identifiers

- CVE-2026-33062
- GHSA-7c47-xr7q-p6hg
- GO-2026-4756

## Related threats

- [free5GC NRF type confusion in OAuth2 token endpoint](https://junglewise.ai/threats/cve-2026-44325-free5gc-nrf-type-confusion-in-oauth2-token-endpoint)
- [Free5gc NRF scope validation bypass in access-token generation](https://junglewise.ai/threats/cve-2025-66719-free5gc-nrf-scope-validation-bypass-in-access-token-generation)