Quick answers
- Is CVE-2026-44473 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-44473 being exploited in the wild.
- How severe is CVE-2026-44473?
- High severity, with a CVSS score of 7.1, published 27 May 2026.
- Which products and versions are affected?
- Ella Networks Ella Core < 1.10.0; github.com/ellanetworks/core (Go) < 1.10.0, SEMVER:introduced=0,fixed=1.10.0.
- Is there a fix for CVE-2026-44473?
- Yes. github.com/ellanetworks/core (Go): upgrade to 1.10.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-44473 attacked?
- It is attacked from the adjacent network, in a hosted service.
- Am I affected by CVE-2026-44473?
- Check whether you run Ella Networks 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 1.10.0 or later
go get github.com/ellanetworks/core@v1.10.0
Technical details
Ella Core fails to verify that a PDUSessionResourceSetupResponse message arrives on the specific SCTP association bound to a User Equipment's (UE) logical NG-connection. An attacker with a valid NG Setup can send a forged response containing a target UE's AMF-UE-NGAP-ID. The core network then incorrectly creates a GTP tunnel towards the attacker's radio, redirecting all downlink user-plane traffic for that UE. This vulnerability is classified under CWE-358 (Improperly Implemented Security Check) and CWE-863 (Incorrect Authorization). A fix is available in version 1.10.0 which scopes UE context lookups to the sending radio's SCTP association.
Affected products
- Ella Networks core < 1.10.0
Identifiers
- CVE-2026-44473
- GHSA-qfxw-v8qx-vj3v
- GO-2026-5581
Timeline
- 2026-05-06: disclosed
- 2026-05-11: advisory: GitHub Advisory published
- 2026-05-27: other: NVD published