CVE-2026-40249

CVE-2026-40249 affects free5GC UDR (versions 4.2.1 and earlier). The PUT handler for /nudr-dr/v2/policy-data/subs-to-notify/{subsId} may continue processing after request body read or deserialization errors, invoking the processor with an uninitialized/partially initialized PolicyDataSubscription...

CVE-2026-40248 free5gc UDR improper path validation allows unauthenticated creation and modification of Traffic Influence Subscriptions

free5GC is an open-source implementation of the 5G core network. In versions 4.2.1 and below of the UDR service, the handler for creating or updating Traffic Influence Subscriptions checks whether the influenceId path segment equals subs-to-notify, but does not return after sending the HTTP 404...

CVE-2026-40248

CVE-2026-40248 affects free5GC UDR (versions 4.2.1 and earlier). The vulnerability stems from improper path validation: when influenceId != subs-to-notify, the handler returns 404 but does not stop, allowing unauthenticated SBI clients to create/modify Traffic Influence Subscriptions by supplying...

CVE-2026-40248

free5GC is an open-source implementation of the 5G core network. In versions 4.2.1 and below of the UDR service, the handler for creating or updating Traffic Influence Subscriptions checks whether the influenceId path segment equals subs-to-notify, but does not return after sending the HTTP 404...

CVE-2026-40248 free5gc UDR improper path validation allows unauthenticated creation and modification of Traffic Influence Subscriptions

free5GC is an open-source implementation of the 5G core network. In versions 4.2.1 and below of the UDR service, the handler for creating or updating Traffic Influence Subscriptions checks whether the influenceId path segment equals subs-to-notify, but does not return after sending the HTTP 404...

CVE-2026-40247

free5GC is an open-source implementation of the 5G core network. In versions 4.2.1 and below of the UDR service, the handler for reading Traffic Influence Subscriptions checks whether the influenceId path segment equals subs-to-notify, but does not return after sending the HTTP 404 response when...

CVE-2026-40247 free5gc UDR improper path validation allows unauthenticated access to Traffic Influence Subscriptions

free5GC is an open-source implementation of the 5G core network. In versions 4.2.1 and below of the UDR service, the handler for reading Traffic Influence Subscriptions checks whether the influenceId path segment equals subs-to-notify, but does not return after sending the HTTP 404 response when...

CVE-2026-40247

The CVE-2026-40247 entry describes an improper path validation in free5GC UDR (versions 4.2.1 and earlier). The handler for GET /nudr-dr/v2/application-data/influenceData/{influenceId}/{subscriptionId} does not stop after sending a 404 when influenceId != subs-to-notify, allowing an unauthenticat...

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...

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...

CVE-2026-40246

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...

CVE-2026-40245

Free5GC is an open-source Linux Foundation project for 5th generation 5G mobile core networks. Versions 4.2.1 and below contain an information disclosure vulnerability in the UDR Unified Data Repository service. The handler for GET /nudr-dr/v2/application-data/influenceData/subs-to-notify sends a...

free5GC 安全漏洞

free5GC is an open-source project for the 5th generation 5G mobile core network. Versions of free5GC such as 1.4.2 and earlier contain security vulnerabilities. These vulnerabilities stem from the UDR service’s handling of traffic affected by subscriptions. After a verification failure, the proce...

free5GC 安全漏洞

free5GC is an open-source project for the 5th generation 5G mobile core network. Versions of free5GC prior to 4.2.1 contained security vulnerabilities. These vulnerabilities stemmed from the GET request handler not properly returning values when necessary parameters were missing. This allowed the...

free5GC 安全漏洞

free5GC is an open-source project for the 5th generation 5G mobile core network. Versions of free5GC prior to 4.2.1 contained security vulnerabilities. These vulnerabilities stemmed from the process that reads traffic affecting subscriptions in the UDR service. After a verification failure, the...

CVE-2026-40245 Free5GC: UDR nudr-dr influenceData/subs-to-notify leaks SUPI in error response body without authentication

Free5GC is an open-source Linux Foundation project for 5th generation 5G mobile core networks. Versions 4.2.1 and below contain an information disclosure vulnerability in the UDR Unified Data Repository service. The handler for GET /nudr-dr/v2/application-data/influenceData/subs-to-notify sends a...

CVE-2026-40245

CVE-2026-40245 concerns Free5GC’s UDR service (versions 4.2.1 and below) where an information disclosure occurs via the 5G SBI endpoint GET /nudr-dr/v2/application-data/influenceData/subs-to-notify. When required query parameters are missing, the handler returns a 400 but does not stop execution,...

free5gc UDR fail-open request handling in PolicyDataSubsToNotifySubsIdPut may allow unintended subscription updates after input errors

Summary A fail-open request handling flaw in the UDR service causes the /nudr-dr/v2/policy-data/subs-to-notify/subsId PUT handler to continue processing requests even after request body retrieval or deserialization errors. This may allow unintended modification of existing Policy Data notificatio...

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...