CVE-2026-8186 Open5GS NF client.c ogs_sbi_client_send_via_scp_or_sepp out-of-bounds
Remote attackers can trigger an out-of-bounds read in Open5GS NF client, potentially exposing memory or causing service disruption.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-8186?
CVE-2026-8186 is a medium-severity memory corruption vulnerability in Open5gs Open5gs, published on 9 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability was detected in Open5GS up to 2.7.7. This affects the function ogs_sbi_client_send_via_scp_or_sepp in the library lib/sbi/client.c of the component NF. Performing a manipulation results in out-of-bounds read. The attack is possible to be carried out remotely. The patch is named d5bc487fcf9ea87d2b03f2ef95123af344773bfb. It is suggested to install a patch to address this issue.
Which versions are affected by CVE-2026-8186?
It affects 1 product.
Products include Open5gs Open5gs.
How do I fix CVE-2026-8186?
No fix has been published for CVE-2026-8186 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-8186 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-8186 exists.
Other vulnerabilities in Open5gs Open5gs
Sources
Also known as GHSA-2xj3-jm9w-283r.