CVE-2026-8291 Open5GS NRF nnrf-handler.c ogs_nnrf_nfm_handle_nf_profile denial of service
Remote attackers can cause denial of service in Open5GS NRF by exploiting a flaw in the NF profile handling function.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-8291?
CVE-2026-8291 is a medium-severity denial of service vulnerability in Open5gs Open5gs, published on 11 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A weakness has been identified in Open5GS up to 2.7.7. Impacted is the function ogs_nnrf_nfm_handle_nf_profile of the file lib/sbi/nnrf-handler.c of the component NRF. This manipulation causes denial of service. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks. The pull request to fix this issue awaits acceptance.
Weakness: CWE-404
Which versions are affected by CVE-2026-8291?
It affects 1 product.
Products include Open5gs Open5gs.
How do I fix CVE-2026-8291?
No fix has been published for CVE-2026-8291 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-8291 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-8291 exists.
Other vulnerabilities in Open5gs Open5gs
Sources
Also known as GHSA-xg8c-hf2j-jjw5.