CVE-2026-8731

MEDIUM

Open5GS NRF client.c ogs_sbi_client_add denial of service

Title source: cna
STIX 2.1

Description

A vulnerability has been found in Open5GS up to 2.7.7. Affected is the function ogs_sbi_client_add in the library /lib/sbi/client.c of the component NRF. The manipulation of the argument client_pool leads to denial of service. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

References (5)

Core 5
Core References
Signature, Permissions Required signature permissions-required
VDB-364320 | CTI Indicators (IOB, IOC, TTP, IOA)
https://vuldb.com/vuln/364320/cti
Third Party Advisory third-party-advisory
Submit #808516 | Open5gs NRF v2.7.7 Denial of Service
https://vuldb.com/submit/808516
Exploit exploit issue-tracking
https://github.com/open5gs/open5gs/issues/4464
Vdb Entry, Technical Description vdb-entry technical-description
VDB-364320 | Open5GS NRF client.c ogs_sbi_client_add denial of service
https://vuldb.com/vuln/364320

Scores

CVSS v3 4.3
EPSS 0.0038
EPSS Percentile 29.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-404
Status published
Products (9)
None/Open5GS 2.7.0
None/Open5GS 2.7.1
None/Open5GS 2.7.2
None/Open5GS 2.7.3
None/Open5GS 2.7.4
None/Open5GS 2.7.5
None/Open5GS 2.7.6
None/Open5GS 2.7.7
open5gs/open5gs < 2.7.7
Published May 17, 2026
Tracked Since May 17, 2026