{"id":"EUVD-2026-32568","enisaUuid":"1fccb326-1b71-3606-b53c-013ae12db977","description":"free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC\u0027s 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.","datePublished":"May 27, 2026, 3:36:40 PM","dateUpdated":"May 27, 2026, 6:47:32 PM","baseScore":10.0,"baseScoreVersion":"3.1","baseScoreVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H","references":"https://github.com/free5gc/free5gc/security/advisories/GHSA-rwww-x45w-p52w\n","aliases":"CVE-2026-44330\nGHSA-rwww-x45w-p52w\n","assigner":"GitHub_M","epss":0.29,"enisaIdProduct":[{"id":"a7363e45-1a86-3537-b941-52b6fa4ce973","product":{"name":"Free5GC","vendor":{"name":"Free5Gc"}},"product_version":"\u003c 4.2.2"}],"enisaIdVendor":[{"id":"d8d9633a-a0bc-3006-8937-dea1b2cbada9","vendor":{"name":"Free5Gc"}}],"enisaIdVulnerability":[{"id":"0ef3ed0e-7bd3-3026-9b06-9605186e9d93","vulnerability":{"id":"GHSA-rwww-x45w-p52w","description":"free5GC\u0027s NEF nnef-pfdmanagement API is unauthenticated; forged bearer tokens can read PFD data and create/delete PFD subscriptions","datePublished":"May 8, 2026, 11:02:41 PM","dateUpdated":"Jun 8, 2026, 11:48:31 PM","baseScore":0.0,"references":"https://github.com/free5gc/free5gc/security/advisories/GHSA-rwww-x45w-p52w\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-44330\nhttps://github.com/free5gc/free5gc/issues/862\nhttps://github.com/free5gc/free5gc\n","enisa_id":"EUVD-2026-32568\n","aliases":"GHSA-rwww-x45w-p52w\nCVE-2026-44330\n","epss":0.0,"dataProcessed":"Nov 1, 2026, 2:00:21 AM","vulnerabilityProduct":[],"vulnerabilityVendor":[]}},{"id":"a8e9d1ee-1443-3d41-af33-39913443e84c","vulnerability":{"id":"CVE-2026-44330","description":"free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC\u0027s 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.","datePublished":"May 27, 2026, 3:36:40 PM","dateUpdated":"May 27, 2026, 6:47:32 PM","status":"PUBLISHED","baseScore":10.0,"baseScoreVersion":"3.1","baseScoreVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H","references":"https://github.com/free5gc/free5gc/security/advisories/GHSA-rwww-x45w-p52w\n","enisa_id":"EUVD-2026-32568\n","assigner":"GitHub_M","epss":0.29,"dataProcessed":"Nov 7, 2026, 7:21:46 AM","vulnerabilityProduct":[{"id":"4bf9c648-b58b-3086-bc15-d80d6d79a550","product":{"name":"Free5GC","vendor":{"name":"Free5Gc"}},"product_version":"\u003c 4.2.2"}],"vulnerabilityVendor":[{"id":"8e5f4ed2-48e1-3207-b12b-06fbfe23f0d7","vendor":{"name":"Free5Gc"}}]}}],"enisaIdAdvisory":[]}