{"id":"GHSA-mc29-hmx6-856q","revision":"31a1def38b474ee39690035dfcc8dfef","records":[{"revision":"31a1def38b474ee39690035dfcc8dfef","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GHSA-mc29-hmx6-856q","aliases":["CVE-2026-44474","GO-2026-5502"],"title":"Ella Core has handover failures during concurrent Security Mode Command","description":"## Summary\n\nElla Core didn't enforce security rules on concurrent running of security procedures defined in TS 33.501 §6.9.5.1 — it could send a NAS Security Mode Command while an N2 handover was still pending (and vice versa).\n\n## Impact\n\nConcurrent Security Mode Command and N2 handover produce a KgNB mismatch between the UE and target gNB, causing the handover to fail. Requires a stalled gNB + re-registration race to trigger.\n\n## Fix\n\nElla Core now enforces both rules from §6.9.5.1, blocking concurrent Security Mode Command and N2 handover procedures.","state":0,"publishedAt":"2026-05-11T15:29:41+00:00","modifiedAt":"2026-06-25T23:11:16.0421657+00:00","affected":[{"ecosystem":"Go","name":"github.com/ellanetworks/core","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"1.10.0"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"LOW"}],"references":["https://github.com/ellanetworks/core/security/advisories/GHSA-mc29-hmx6-856q","https://nvd.nist.gov/vuln/detail/CVE-2026-44474","https://github.com/ellanetworks/core"],"sourceUrl":"https://github.com/advisories/GHSA-mc29-hmx6-856q","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-mc29-hmx6-856q","identifiers":["GHSA-mc29-hmx6-856q","CVE-2026-44474","GO-2026-5502"]},"retained":false,"historicalAffected":[]}],"coverage":[]}