Medium, CVSS 6.9GoPublished
Free5GC AMF is vulnerable to DoS through its HandleRegistrationComplete function
CVE-2026-4531 · GHSA-xq44-64rg-8g3h
- Affected
- Go github.com/free5gc/amf < 1.4.3-0.20260306074636-52e9386401ce
- Fixed in
- 1.4.3-0.20260306074636-52e9386401ce· Vendor fix available
- Issue
- A weakness has been identified in Free5GC 4.1.0. Affected is the function HandleRegistrationComplete of the file internal/gmm/handler.go of the component AMF. Executing a manipulation can lead to denial of service. The attack may be performed from remote. This patch is called 52e9386401ce56ea773c5aa587d4cdf7d53da799. It is best practice to apply a patch to resolve this issue.
Recommended action: Upgrade to 1.4.3-0.20260306074636-52e9386401ce (pre-release) or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.