# CVE-2026-33903: GO-2026-4875 - Ella Core panics when processing a crafted NGAP LocationReport message in github.com/ellanetworks/core

Source: https://junglewise.ai/threats/cve-2026-33903-ella-core-panics-when-processing-a-crafted-ngap-locationreport  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-03-27  
License: CC BY 4.0 with a link back

CVE-2026-33903 · Severity: medium · CVSS 6.5 · Published 2026-03-27

Ella Core is a 5G core designed for private networks. Versions prior to 1.7.0 panic when processing a specially crafted NGAP LocationReport message. An attacker able to send crafted NGAP messages to Ella Core can crash the process, causing service disruption for all connected subscribers. Version 1.7.0 adds guards in NGAP Location Report handler.

Technologies: [Ellanetworks Ella Core](https://junglewise.ai/threats/technologies/ellanetworks-ella-core), [github.com/ellanetworks/core (Go)](https://junglewise.ai/threats/technologies/github-com-ellanetworks-core). Vendors: [Ellanetworks](https://junglewise.ai/threats/vendors/ellanetworks), [Go](https://junglewise.ai/threats/vendors/go).

## Quick answers

**Is CVE-2026-33903 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-33903 being exploited in the wild.

**How severe is CVE-2026-33903?** Medium severity, with a CVSS score of 6.5, published 27 March 2026.

**Which products and versions are affected?** github.com/ellanetworks/core (Go) SEMVER:introduced=0,fixed=1.7.0.

**Is there a fix for CVE-2026-33903?** Yes. github.com/ellanetworks/core (Go): upgrade to 1.7.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2026-33903?** Check whether you run Ellanetworks Ella Core or github.com/ellanetworks/core (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/ellanetworks/core (Go): upgrade to 1.7.0 or later

  ```sh
  go get github.com/ellanetworks/core@v1.7.0
  ```


## Affected products

- Ellanetworks Ella Core
- github.com/ellanetworks/core (Go) SEMVER:introduced=0,fixed=1.7.0

## Identifiers

- CVE-2026-33903
- GHSA-f2f3-9cx3-wcmf
- GO-2026-4875

## Related threats

- [Ella Networks Ella Core security bypass in NGAP PathSwitchRequest](https://junglewise.ai/threats/cve-2026-44475-ella-networks-ella-core-security-bypass-in-ngap-pathswitchrequest)
- [Ella Networks Ella Core improper security check in 5G NAS procedures](https://junglewise.ai/threats/cve-2026-44474-ella-networks-ella-core-improper-security-check-in-5g-nas)
- [Ella Networks Ella Core traffic redirection in NGAP handling](https://junglewise.ai/threats/cve-2026-44473-ella-networks-ella-core-traffic-redirection-in-ngap-handling)
- [Ella Networks Ella Core audit log falsification in subscriber API](https://junglewise.ai/threats/cve-2026-34762-ella-networks-ella-core-audit-log-falsification-in-subscriber-api)
- [Ella Networks Ella Core NULL pointer dereference in NGAP handover](https://junglewise.ai/threats/cve-2026-34761-ella-networks-ella-core-null-pointer-dereference-in-ngap-handover)