CVE-2026-8119: Open5GS NSSF nghttp2-server.c ogs_sbi_stream_find_by_id denial of service

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% 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 detected in Open5GS up to 2.7.7. Impacted is the function ogs_sbi_stream_find_by_id in the library /lib/sbi/nghttp2-server.c of the component NSSF. Performing a manipulation results in denial of service. Attacking locally is a requirement. The exploit is now public and may 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/4431
https://vuldb.com/submit/808420
https://vuldb.com/vuln/361906
https://vuldb.com/vuln/361906/cti

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