CVE-2026-8730 Details
Description
A flaw has been found in Open5GS up to 2.7.6. This impacts the function ogs_sbi_nf_instance_set_id in the library /lib/sbi/context.c of the component NRF. Executing a manipulation of the argument nfInstanceId can lead to denial of service. The attack may be performed from remote. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.
A denial-of-service vulnerability has been identified in Open5GS versions through 2.7.6. The issue arises in the Network Repository Function (NRF) component, specifically within the 'ogs_sbi_nf_instance_set_id' function in the 'lib/sbi/context.c' file. The vulnerability can be exploited remotely by sending a 'PUT' request to the '/nnrf-nfm/v1/nf-instances' endpoint without including the required 'nfInstanceId' path component. This omission causes the NRF to crash, as the function asserts that the ID pointer is non-null, leading to an assertion failure and process termination.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed May 18, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/open5gs/open5gs/ | [email protected] | Product |
| https://github.com/open5gs/open5gs/issues/4462 | [email protected] | ExploitIssue Tracking |
| https://vuldb.com/submit/808514 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/vuln/364319 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/vuln/364319/cti | [email protected] | Permissions RequiredVDB Entry |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-404 | Improper Resource Shutdown or Release | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| open5gs open5gs | <= 2.7.6 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 19, 2026 | Initial Analysis | [email protected] |
| May 17, 2026 | New CVE Received | [email protected] |