Detections
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SCA: security update for github.com/free5gc/udm (GHSA-7g27-v5wj-jr75)

high Tenable Self-Hosted Container Security Plugin ID 438975

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Free5GC is an open-source Linux Foundation project for 5th generation (5G) mobile core networks. Versions
 prior to 1.4.2 are vulnerable to procedure panic caused by Nil Pointer Dereference in the /sdm-
 subscriptions endpoint. A remote attacker can cause the UDM service to panic and crash by sending a
 crafted POST request to the /sdm-subscriptions endpoint with a malformed URL path containing path
 traversal sequences (../) and a large JSON payload. The DataChangeNotificationProcedure function in
 notifier.go attempts to access a nil pointer without proper validation, causing a complete service crash
 with "runtime error: invalid memory address or nil pointer dereference". Exploitation would result in UDM
 functionality disruption until recovery by restart. This issue has been fixed in version 1.4.2.
 (CVE-2026-33064)

Solution

Update the github.com/free5gc/udm library and its related packages to version 1.4.2 or later.

See Also

https://github.com/advisories/GHSA-7g27-v5wj-jr75

Plugin Details

Severity: High

ID: 438975

Version: Revision 1.10

Type: Local

Family: SCA Checks

Published: 3/19/2026

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.73

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2026-33064

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 7.7

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/18/2026

Vulnerability Publication Date: 3/18/2026

Reference Information

CVE: CVE-2026-33064