Detections
Analytics

SCA: security update for github.com/free5gc/udm (GHSA-958m-gxmc-mccm)

medium Tenable Cloud Security Plugin ID 438984

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. In
 versions prior to 1.4.2, the UDM incorrectly converts a downstream 400 Bad Request (from UDR) into a 500
 Internal Server Error when handling DELETE requests with an empty supi path parameter. This leaks internal
 error handling behavior and makes it difficult for clients to distinguish between client-side errors and
 server-side failures. When a client sends a DELETE request with an empty supi (e.g., double slashes // in
 URL path), the UDM forwards the malformed request to UDR, which correctly returns 400. However, UDM
 propagates this as 500 SYSTEM_FAILURE instead of returning the appropriate 400 error to the client. This
 violates REST API best practices for DELETE operations. The issue has been patched in version 1.4.2.
 (CVE-2026-33065)

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-958m-gxmc-mccm

Plugin Details

Severity: Medium

ID: 438984

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: 1.2

Percentile: 0.01

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2026-33065

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.8

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

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

CVSS v4

Risk Factor: Medium

Base Score: 6.9

Threat Score: 5.5

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/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-2026-33065

cwe: CWE-209