Denial of Service Vulnerability in Open5GS NSSF by Open5GS
CVE-2026-8119

4.8MEDIUM

Key Information:

Vendor

Open5GS

Status
Open5gs
Vendor
CVE Published:
8 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-8119?

A vulnerability has been identified in Open5GS NSSF impacting versions up to 2.7.7. The issue lies within the ogs_sbi_stream_find_by_id function in the nghttp2-server.c library, which when manipulated, can lead to a denial of service. This attack necessitates local access, and exploitation may result in service interruptions. Despite prior awareness via an issue report, the Open5GS project has yet to respond effectively to address the identified problem.

Affected Version(s)

Open5GS 2.7.0

Open5GS 2.7.1

Open5GS 2.7.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-8119 - Proof of Concept

References

https://vuldb.com/vuln/361906
vdb-entrytechnical-description
https://vuldb.com/vuln/361906/cti
signaturepermissions-required
https://vuldb.com/submit/808420
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

FrankyLin (VulDB User)
VulDB CNA Team
.