---
id: CVE-2026-10157
title: Open5GS NGAP PathSwitchRequest Message ngap-handler.c improper authentication
summary: >-
  A vulnerability was identified in Open5GS up to 2.7.6. This impacts an unknown
  function of the file src/amf/ngap-handler.c of the component NGAP
  PathSwitchRequest Message Handler. The manipulation leads to improper
  authentication. It is …
severity: high
cvss: 7.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C'
cvssSource: cna
cwe:
  - CWE-287
product: Open5GS
affected:
  - Open5GS 2.7.0
  - Open5GS 2.7.1
  - Open5GS 2.7.2
  - Open5GS 2.7.3
  - Open5GS 2.7.4
  - Open5GS 2.7.5
  - Open5GS 2.7.6
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-06-02T02:14:23.118606Z'
exploitAvailable: true
published: '2026-05-31'
updated: '2026-10-21'
sourceUpdated: '2026-10-21T09:02:58.337Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-10157'
references:
  - url: 'https://vuldb.com/vuln/367410'
    label: >-
      VDB-367410 | Open5GS NGAP PathSwitchRequest Message ngap-handler.c
      improper authentication
  - url: 'https://vuldb.com/vuln/367410/cti'
    label: 'VDB-367410 | CTI Indicators (IOB, IOC, IOA)'
  - url: 'https://vuldb.com/cve/CVE-2026-10157'
    label: CVE-2026-10157 | CVE Analysis and Report
  - url: 'https://vuldb.com/submit/818939'
    label: 'Submit #818939 | open5gs Open5GS v2.7.6 Improper Authentication'
  - url: 'https://github.com/open5gs/open5gs/issues/4393'
  - url: 'https://github.com/open5gs/open5gs/pull/4557'
  - url: >-
      https://github.com/open5gs/open5gs/commit/a188e36b1741ffc2252133f59b1bda4f14d3cb5c
  - url: 'https://github.com/open5gs/open5gs/'
tags:
  - cve.org
  - exploit-available
epss: 0.00419
epssPercentile: 0.3489
ingestedAt: '2026-10-21T09:46:15.396Z'
---

## Overview

A vulnerability was identified in Open5GS up to 2.7.6. This impacts an unknown function of the file src/amf/ngap-handler.c of the component NGAP PathSwitchRequest Message Handler. The manipulation leads to improper authentication. It is possible to initiate the attack remotely. The exploit is publicly available and might be used. The identifier of the patch is a188e36b1741ffc2252133f59b1bda4f14d3cb5c. It is suggested to install a patch to address this issue.

## Affected

- `Open5GS 2.7.0`
- `Open5GS 2.7.1`
- `Open5GS 2.7.2`
- `Open5GS 2.7.3`
- `Open5GS 2.7.4`
- `Open5GS 2.7.5`
- `Open5GS 2.7.6`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.