Report: CVE-2026-40343 - free5GC UDR: Fail-open handling in PolicyDataSubsToNotifyPost allows unintended ...

Report: CVE-2026-40343 - free5GC UDR: Fail-open handling in PolicyDataSubsToNotifyPost allows unintended ...

CVE ID :CVE-2026-40343 Published : April 22, 2026, 12:16 a.m. | 33 minutes ago Description :free5GC UDR is the user data repository (UDR) for free5GC, an an open-source project for 5th generation (5G) mobile core networks. In versions up to and including 1.4.2, a fail-open request handling flaw in the UDR service causes the `/nudr-dr/v2/policy-data/subs-to-notify` POST handler to continue processing requests even after request body retrieval or deserialization errors. This may allow unintended creation of Policy Data notification subscriptions with invalid, empty, or partially processed input, depending on downstream processor behavior. As of time of publication, a patched version is not available. Severity: 6.9 | MEDIUM Visit the link for more details, such as CVSS details, affected products, timeline, and more...

CVE Details

Severity
MEDIUM
Published
April 22, 2026