Resource exhaustion in Open5gs
CVE-2026-107166
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.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Open5gs — versions 2.7.0, 2.7.1, 2.7.2
Weakness classification (CWE)
References
- github.com/open5gs/open5gs/ (product)
- github.com/open5gs/open5gs/commit/9ffc252482d9b03ac01abcedbe95497ff4f95dd0 (patch)
- github.com/open5gs/open5gs/issues/4792 (issue-tracking, exploit)
- github.com/open5gs/open5gs/pull/4806 (issue-tracking, patch)
- vuldb.com/cve/CVE-2026-107166 (third-party-advisory)
- vuldb.com/submit/994175 (third-party-advisory)
- vuldb.com/vuln/414968 (technical-description, vdb-entry)
- vuldb.com/vuln/414968/cti (signature, permissions-required)
Frequently asked questions
- What is CVE-2026-107166?
- CVE-2026-107166 is a medium-severity vulnerability in Open5gs, classified under Uncontrolled Resource Consumption. CVSS score: 5.3/10. Published 2026-10-07.
- How severe is CVE-2026-107166?
- Medium severity. CVSS v3 base score is 5.3 out of 10.