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...

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-2026-40245

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 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...

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...

GHSA-WRWH-RPQ4-87HF free5gc UDR nudr-dr influenceData/subs-to-notify leaks SUPI in error response body without authentication

Summary An information disclosure vulnerability in the UDR service allows any unauthenticated attacker with access to the 5G Service Based Interface SBI to retrieve stored subscriber identifiers SUPI/IMSI with a single HTTP GET request requiring no parameters or credentials. Details The endpoint...

Information Exposure

Overview Affected versions of this package are vulnerable to Information Exposure in the HandleApplicationDataInfluenceDataSubsToNotifyGet process. An attacker can access sensitive subscriber identifiers by sending unauthenticated HTTP GET requests to the affected endpoint without any query...

free5gc UDR nudr-dr influenceData/subs-to-notify leaks SUPI in error response body without authentication

Summary An information disclosure vulnerability in the UDR service allows any unauthenticated attacker with access to the 5G Service Based Interface SBI to retrieve stored subscriber identifiers SUPI/IMSI with a single HTTP GET request requiring no parameters or credentials. Details The endpoint...

Information Exposure

Overview github.com/free5gc/udr/internal/sbi is a None Affected versions of this package are vulnerable to Information Exposure. in the HandleApplicationDataInfluenceDataSubsToNotifyGet process. An attacker can access sensitive subscriber identifiers by sending unauthenticated HTTP GET requests t...

PT-2026-32972

Summary An information disclosure vulnerability in the UDR service allows any unauthenticated attacker with access to the 5G Service Based Interface SBI to retrieve stored subscriber identifiers SUPI/IMSI with a single HTTP GET request requiring no parameters or credentials. Details The endpoint...

New 5G Network Flaws Let Attackers Track Users' Locations and Steal Data

As 5G networks are being gradually rolled out in major cities across the world, an analysis of its network architecture has revealed a number of potential weaknesses that could be exploited to carry out a slew of cyber assaults, including denial-of-service DoS attacks to deprive subscribers of...