CVE-2026-8268 — Open5GS Denial of Service
CVE-2026-8268 — A vulnerability has been found in Open5GS up to 2.7.7. This issue affects the function OpenAPI_list_create of the component SMF. Such manipulation leads to denial of service. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The projec
What This Means For You
- If your environment is affected by CWE-404, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-8268 updates and patches.
Related ATT&CK Techniques
🛡️ Detection Rules
1 rule · 6 SIEM formats1 detection rule auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.
CVE-2026-8268 - Open5GS SMF OpenAPI_list_create DoS
title: CVE-2026-8268 - Open5GS SMF OpenAPI_list_create DoS
id: scw-2026-05-11-ai-1
status: experimental
level: high
description: |
Detects attempts to exploit CVE-2026-8268 by targeting the OpenAPI_list_create function within the SMF component of Open5GS. This rule looks for specific HTTP POST requests to the '/smf-api/v1/subscriptions' endpoint with a query parameter indicating the vulnerable function, which can lead to a denial of service.
author: SCW Feed Engine (AI-generated)
date: 2026-05-11
references:
- https://shimiscyberworld.com/posts/nvd-CVE-2026-8268/
tags:
- attack.initial_access
- attack.t1190
logsource:
category: webserver
detection:
selection:
cs-method:
- 'POST'
cs-uri:
- '/smf-api/v1/subscriptions'
cs-uri-query|contains:
- 'list_create'
condition: selection
falsepositives:
- Legitimate administrative activity
Source: Shimi's Cyber World · License & reuse
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-8268 | vulnerability | CVE-2026-8268 |
| CWE-404 | weakness | CWE-404 |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | May 11, 2026 at 07:16 UTC |
This content was curated and summarized by Shimi's Cyber World for informational purposes. It is not copied or republished in full. All intellectual property rights remain with the original author and source.
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