CVE-2026-107166 Open5GS GTP-U Receive Path gtp-path.c ogs_pfcp_xact_local_create allocation of resources
Remote attackers can cause resource exhaustion in Open5GS via the GTP-U receive path, leading to denial of service.
- 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-2026-107166?
CVE-2026-107166 is a medium-severity denial of service vulnerability in Open5GS, published on 7 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A weakness has been identified in Open5GS up to 2.7.7. This vulnerability affects the function ogs_pfcp_xact_local_create of the file src/upf/gtp-path.c of the component GTP-U Receive Path. This manipulation causes allocation of resources. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks. Patch name: 9ffc252482d9b03ac01abcedbe95497ff4f95dd0. It is recommended to apply a patch to fix this issue.
Which versions are affected by CVE-2026-107166?
How do I fix CVE-2026-107166?
No fix has been published for CVE-2026-107166 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-2026-107166 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-107166 exists.
Sources
Also known as GHSA-qv2w-h32m-r96m.