CVE-2026-8122 — Open5GS Denial of Service
CVE-2026-8122 — A vulnerability was found in Open5GS up to 2.7.7. This affects the function ogs_sbi_discovery_option_add_service_names in the library /lib/sbi/message.c of the component NSSF. The manipulation results in denial of service. The attack may be performed from remote. The exploit has been
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-2026-8122 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-2026-8122 - Open5GS NSSF Denial of Service
title: CVE-2026-8122 - Open5GS NSSF Denial of Service
id: scw-2026-05-08-ai-1
status: experimental
level: high
description: |
Detects potential exploitation of CVE-2026-8122 by looking for specific HTTP POST requests to the Open5GS NSSF service discovery endpoint with a malformed 'service_names' parameter, which can lead to a denial of service.
author: SCW Feed Engine (AI-generated)
date: 2026-05-08
references:
- https://shimiscyberworld.com/posts/nvd-CVE-2026-8122/
tags:
- attack.impact
- attack.t1499
logsource:
category: webserver
detection:
selection:
cs-uri|contains:
- '/ogs-sbi-discovery/v1/services'
cs-method|exact:
- 'POST'
cs-uri-query|contains:
- 'service_names='
condition: selection
falsepositives:
- Legitimate administrative activity
Source: Shimi's Cyber World · License & reuse
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-8122 | vulnerability | CVE-2026-8122 |
| CWE-404 | weakness | CWE-404 |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | May 08, 2026 at 04:16 UTC |
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