CVE-2026-40343
free5GC UDR: Fail-open handling in PolicyDataSubsToNotifyPost allows unintended subscription creation in github.com/free5gc/udr
5.8
MEDIUM
CVSS 3.1
EPSS 10.0%
Description
free5GC UDR: Fail-open handling in PolicyDataSubsToNotifyPost allows unintended subscription creation in github.com/free5gc/udr
How to fix CVE-2026-40343
No fixed version has been published yet. Mitigate by removing the affected package or applying upstream guidance from the references below.
- Go/github.com/free5gc/udr—no fix listed
- —no fix listed
Is CVE-2026-40343 being exploited?
Moderate — EPSS is 10.0%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (2)
- from 0, <= 1.4.2
- from 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N |
| osv | CVSS 3.1 | MEDIUM5.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N |