# github.com/free5gc/udr (Go) vulnerabilities

9 known vulnerabilities (4 high, 5 medium), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: v1.4.5 (Aug 19, 2026): affected by 7 advisories
- Newest unaffected release: Every release is affected by at least one advisory
- Releases: 17 since v1.0.0 (Jan 30, 2021)
- Registry: https://pkg.go.dev/github.com/free5gc/udr
- Releases read: Nov 8, 2026

## Version timeline

Affected versions per advisory, in version order:

- CVE-2026-47780: v1.0.0 to v1.4.5 (through the newest release)
- CVE-2026-44323: v1.0.0 to v1.4.2 (v1.4.3 is outside it)
- CVE-2026-44324: v1.0.0 to v1.4.2 (v1.4.3 is outside it)
- CVE-2026-40343: v1.0.0 to v1.4.5 (through the newest release)
- CVE-2026-40249: v1.0.0 to v1.4.5 (through the newest release)
- CVE-2026-40248: v1.0.0 to v1.4.5 (through the newest release)
- CVE-2026-40247: v1.0.0 to v1.4.5 (through the newest release)
- CVE-2026-40246: v1.0.0 to v1.4.5 (through the newest release)
- CVE-2026-40245: v1.0.0 to v1.4.5 (through the newest release)

## Advisories (9)

### [CVE-2026-47780](https://cve.now/CVE-2026-47780): free5GC: UDR Improper ueId validation in free5GC EE subscription handlers allows arbitrary identifier persistence

- Severity: Medium 6.9
- Published: Sep 15, 2026
- Affected: through 1.4.3; all versions.
- No fix released. The latest release, v1.4.5, is still affected.

### [CVE-2026-44323](https://cve.now/CVE-2026-44323): free5GC: UDR nudr-dr DELETE amf-subscriptions panics on missing subsId when UE state exists (nil pointer dereference)

- Severity: Medium 4.3
- Published: May 27, 2026
- Affected: fixed in 1.4.3.
- Fixed in v1.4.3 (released Apr 7, 2026, 50 days before disclosure).
- The latest release, v1.4.5, is not affected.

### [CVE-2026-44324](https://cve.now/CVE-2026-44324): free5GC: UDR nudr-dr DELETE amf-subscriptions panics on missing UE state via nil interface type assertion (single authenticated request)

- Severity: Medium 6.5
- Published: May 27, 2026
- Affected: fixed in 1.4.3.
- Fixed in v1.4.3 (released Apr 7, 2026, 50 days before disclosure).
- The latest release, v1.4.5, is not affected.

### [CVE-2026-40343](https://cve.now/CVE-2026-40343): free5GC UDR: Fail-open handling in PolicyDataSubsToNotifyPost allows unintended subscription creation

- Severity: Medium 6.9
- Published: Apr 21, 2026
- Affected: through 1.4.2; all versions.
- No fix released. The latest release, v1.4.5, is still affected.

### [CVE-2026-40249](https://cve.now/CVE-2026-40249): free5gc UDR fail-open request handling in PolicyDataSubsToNotifySubsIdPut may allow unintended subscription updates after input errors

- Severity: Medium 6.9
- Published: Apr 16, 2026
- Affected: all versions; through 1.4.2.
- No fix released. The latest release, v1.4.5, is still affected.

### [CVE-2026-40248](https://cve.now/CVE-2026-40248): free5gc UDR improper path validation allows unauthenticated creation and modification of Traffic Influence Subscriptions

- Severity: High 8.7
- Published: Apr 16, 2026
- Affected: all versions; through 1.4.2.
- No fix released. The latest release, v1.4.5, is still affected.

### [CVE-2026-40247](https://cve.now/CVE-2026-40247): free5gc UDR improper path validation allows unauthenticated access to Traffic Influence Subscriptions

- Severity: High 8.7
- Published: Apr 16, 2026
- Affected: all versions; through 1.4.2.
- No fix released. The latest release, v1.4.5, is still affected.

### [CVE-2026-40246](https://cve.now/CVE-2026-40246): free5gc UDR improper path validation allows unauthenticated deletion of Traffic Influence Subscriptions

- Severity: High 8.7
- Published: Apr 16, 2026
- Affected: all versions; through 1.4.2.
- No fix released. The latest release, v1.4.5, is still affected.

### [CVE-2026-40245](https://cve.now/CVE-2026-40245): Free5GC: UDR nudr-dr influenceData/subs-to-notify leaks SUPI in error response body without authentication

- Severity: High 7.5
- Published: Apr 15, 2026
- Affected: all versions; through 1.4.2.
- No fix released. The latest release, v1.4.5, is still affected.

---

Source: cve.now
Built by [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown), AI-native observability and security: automatic issue detection, plain-language log search and live dashboards.
Page: https://cve.now/packages/go/github.com/free5gc/udr
Site guide for agents: https://cve.now/llms.txt
Uses NVD data; not endorsed by NVD.