{"id":"CVE-2026-44330","revision":"af034f7cc5e946afbe254b34fdef2d38","records":[{"revision":"af034f7cc5e946afbe254b34fdef2d38","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-44330","aliases":[],"title":"free5GC: NEF nnef-pfdmanagement API is unauthenticated; forged bearer tokens can read PFD data and create/delete PFD subscriptions","description":"free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's NEF mounts the nnef-pfdmanagement route group without inbound OAuth2/bearer-token authorization. A network attacker who can reach NEF on the SBI can use a forged or arbitrary bearer token (e.g. Authorization: Bearer not-a-real-token) to read PFD application data via GET /applications and GET /applications/{appID}, and to create or delete PFD change-notification subscriptions via POST /subscriptions and DELETE /subscriptions/{subID}. Same root cause as the other NEF SBI findings: the route group is mounted without any inbound auth middleware. Unlike the OAM and traffic-influence groups, nnef-pfdmanagement IS declared in the runtime ServiceList, so this is the production-intended path that operators expect to be protected by OAuth2 setting receive from NRF: true -- and it is not. This vulnerability is fixed in 4.2.2.","state":0,"publishedAt":"2026-05-27T15:36:40.809+00:00","modifiedAt":"2026-05-27T18:47:32.545+00:00","affected":[{"ecosystem":"Vendor product","name":"free5gc","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"free5gc\",\n                    \"product\": \"free5gc\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 4.2.2\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H","score":10,"severity":"CRITICAL"}],"references":["https://github.com/free5gc/free5gc/security/advisories/GHSA-rwww-x45w-p52w"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-44330","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-44330","identifiers":["CVE-2026-44330"]},"retained":false,"historicalAffected":[]}],"coverage":[]}