CVE-2026-8291 Details
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.
A denial-of-service vulnerability has been identified in Open5GS versions through 2.7.7, specifically within the function ogs_nnrf_nfm_handle_nf_profile in the file lib/sbi/nnrf-handler.c, part of the NRF component. This vulnerability allows for remote exploitation, causing the NRF process to crash by exhausting the NF instance pool. The issue arises when a Home-PLMN NRF response contains an excessive number of unique NF instances, leading to resource exhaustion and an assertion failure that terminates the process.
A pull request has been submitted to address this vulnerability by replacing the assertion that causes the crash with a more graceful handling of the situation, capping the number of instances and preventing the resource exhaustion.
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 11, 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/4456 | [email protected] | ExploitIssue Tracking |
| https://github.com/open5gs/open5gs/pull/4534 | [email protected] | ExploitIssue TrackingPatch |
| https://vuldb.com/submit/808508 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/vuln/362588 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/vuln/362588/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 | <= 2.7.7 |
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 14, 2026 | Initial Analysis | [email protected] |
| May 11, 2026 | New CVE Received | [email protected] |