CVE-2026-8744: Open5GS NRF context.c ogs_sbi_nf_service_add denial of service

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-05-17 · updated 2026-06-17
Weakness: CWE-404

Description

A vulnerability was determined in Open5GS up to 2.7.7. Affected is the function ogs_sbi_subscription_data_add/ogs_sbi_nf_service_add in the library /lib/sbi/context.c of the component NRF. Executing a manipulation can lead to denial of service. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. This patch is called 819db11a08b9736a3576c4f99ceb28f7eb99523a. A patch should be applied to remediate this issue.

Affected products

Open5GS: through 2.7.7

References

https://github.com/open5gs/open5gs/
https://github.com/open5gs/open5gs/commit/819db11a08b9736a3576c4f99ceb28f7eb99523a
https://github.com/open5gs/open5gs/issues/4465
https://github.com/open5gs/open5gs/issues/4466
https://github.com/open5gs/open5gs/pull/4534
https://vuldb.com/submit/817029
https://vuldb.com/submit/817030
https://vuldb.com/vuln/364331
https://vuldb.com/vuln/364331/cti

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