CVE-2026-8122: Open5GS NSSF message.c ogs_sbi_discovery_option_add_service_names denial of service

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-05-08 · updated 2026-06-17
Weakness: CWE-404

Description

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 made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.

Affected products

Open5GS: through 2.7.7

References

https://github.com/open5gs/open5gs/
https://github.com/open5gs/open5gs/issues/4435
https://vuldb.com/submit/808425
https://vuldb.com/vuln/361909
https://vuldb.com/vuln/361909/cti

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