CVE-2026-44318 free5GC: BSF concurrent PUT /nbsf-management/v1/subscriptions/{subId} crashes the BSF process via concurrent map read/write on Subscriptions

🗓️ 27 May 2026 15:35:41Reported by GoogleType

osv🔗 osv.dev👁 2 Views

Free5GC BSF PUT subscriptions handler unsafely writes to a shared map, causing concurrent read and write panic; fixed in 4.2.2.

Reporter	Title	Published	Views	Family All 14
ATTACKERKB	CVE-2026-44318	27 May 202615:35	–	attackerkb
Circl	CVE-2026-44318	7 May 202601:13	–	circl
CNNVD	free5GC 安全漏洞	27 May 202600:00	–	cnnvd
CVE	CVE-2026-44318	27 May 202615:35	–	cve
Cvelist	CVE-2026-44318 free5GC: BSF concurrent PUT /nbsf-management/v1/subscriptions/{subId} crashes the BSF process via concurrent map read/write on Subscriptions	27 May 202615:35	–	cvelist
EUVD	EUVD-2026-32567	27 May 202615:35	–	euvd
Github Security Blog	free5GC's BSF concurrent PUT /nbsf-management/v1/subscriptions/{subId} crashes the BSF process via concurrent map read/write on Subscriptions	8 May 202622:41	–	github
NVD	CVE-2026-44318	27 May 202617:16	–	nvd
OSV	GHSA-27PH-8Q4F-H7M7 free5GC's BSF concurrent PUT /nbsf-management/v1/subscriptions/{subId} crashes the BSF process via concurrent map read/write on Subscriptions	8 May 202622:41	–	osv
OSV	GO-2026-4994 free5GC's BSF concurrent PUT /nbsf-management/v1/subscriptions/{subId} crashes the BSF process via concurrent map read/write on Subscriptions in github.com/free5gc/bsf	20 May 202619:07	–	osv

Source	Link
github	www.github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44318.json
github	www.github.com/free5gc/free5gc/security/advisories/GHSA-27ph-8q4f-h7m7
nvd	www.nvd.nist.gov/vuln/detail/CVE-2026-44318
github	www.github.com/free5gc/free5gc/issues/926
github	www.github.com/free5gc/bsf/commit/277908565fd628d974a13ef562b81a8b7b519ffa
github	www.github.com/free5gc/bsf/pull/7

08 Jul 2026 08:13Current

6Medium risk

Vulners AI Score6

CVSS 3.16.5

EPSS0.00268