GTP-U Receive Path Vulnerability in Open5GS by Open5GS
CVE-2026-107166

6.9MEDIUM

Key Information:

Vendor

Open5GS

Status
Open5gs
Vendor
CVE Published:
7 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-107166?

A vulnerability has been reported in Open5GS versions up to 2.7.7 in the GTP-U Receive Path function ogs_pfcp_xact_local_create, which allows remote attackers to manipulate resource allocations. This issue can potentially be exploited without authentication, making it critical to address. Users are advised to apply the provided patch (commit 9ffc252482d9b03ac01abcedbe95497ff4f95dd0) to safeguard against potential exploits, as the attack vector has been publicly disclosed.

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-2026-107166 - Proof of Concept

References

https://vuldb.com/vuln/414968
vdb-entrytechnical-description
https://vuldb.com/vuln/414968/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-107166
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Network
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

ea1809 (VulDB User)
.