CVE-2026-40246 free5gc UDR improper path validation allows unauthenticated deletion of Traffic Influence Subscriptions

free5GC is an open-source implementation of the 5G core network. In versions 1.4.2 and below of the UDR service, the handler for deleting Traffic Influence Subscriptions checks whether the influenceId path segment equals subs-to-notify, but does not return after sending the HTTP 404 response when...

GHSA-JGQ2-QV8V-5CMJ free5gc UDR improper path validation allows unauthenticated creation and modification of Traffic Influence Subscriptions

Summary An improper path validation vulnerability in the UDR service allows any unauthenticated attacker with access to the 5G Service Based Interface SBI to create or overwrite Traffic Influence Subscriptions by supplying an arbitrary value in place of the expected subs-to-notify path segment...

free5gc UDR improper path validation allows unauthenticated creation and modification of Traffic Influence Subscriptions

Summary An improper path validation vulnerability in the UDR service allows any unauthenticated attacker with access to the 5G Service Based Interface SBI to create or overwrite Traffic Influence Subscriptions by supplying an arbitrary value in place of the expected subs-to-notify path segment...

free5gc UDR improper path validation allows unauthenticated access to Traffic Influence Subscriptions

Summary An improper path validation vulnerability in the UDR service allows any unauthenticated attacker with access to the 5G Service Based Interface SBI to read Traffic Influence Subscriptions by supplying an arbitrary value in place of the expected subs-to-notify path segment. Details The...

Improper Authorization

Overview Affected versions of this package are vulnerable to Improper Authorization through improper validation of the influenceId path parameter in the DELETE endpoint. An attacker can remove arbitrary Traffic Influence Subscriptions by sending a crafted request with an invalid influenceId value...

free5gc UDR improper path validation allows unauthenticated deletion of Traffic Influence Subscriptions

Summary An improper path validation vulnerability in the UDR service allows any unauthenticated attacker with access to the 5G Service Based Interface SBI to delete Traffic Influence Subscriptions by supplying an arbitrary value in place of the expected subs-to-notify path segment. Details The...

PT-2026-32973

Name of the Vulnerable Software and Affected Versions free5GC versions 1.4.2 and earlier Description An improper path validation issue exists in the UDR service. An unauthenticated attacker with access to the 5G Service Based Interface can delete arbitrary Traffic Influence Subscriptions by...

PT-2026-32974

Name of the Vulnerable Software and Affected Versions free5GC versions 4.2.1 and earlier Description An improper path validation issue exists in the UDR service. The endpoint 'GET /nudr-dr/v2/application-data/influenceData/influenceId/subscriptionId' is designed to operate only when the influence...

PT-2026-32975

Name of the Vulnerable Software and Affected Versions free5GC UDR service versions prior to 4.2.1 Description An improper path validation issue exists in the UDR service. The handler for creating or updating Traffic Influence Subscriptions checks if the influenceId path segment equals...