CVE-2026-8744 Details
Description
A vulnerability was determined in Open5GS up to 2.7.7. Affected is the function ogs_sbi_subscription_data_add/ogs_sbi_nf_service_add in the library /lib/sbi/context.c of the component NRF. Executing a manipulation can lead to denial of service. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. This patch is called 819db11a08b9736a3576c4f99ceb28f7eb99523a. A patch should be applied to remediate this issue.
A denial-of-service vulnerability has been identified in Open5GS versions through 2.7.7, specifically within the Network Repository Function (NRF) component. The issue arises in the 'ogs_sbi_subscription_data_add' and 'ogs_sbi_nf_service_add' functions, located in the '/lib/sbi/context.c' file. The vulnerability can be exploited remotely, leading to a crash of the NRF process. This issue has been publicly disclosed and is associated with a resource exhaustion problem, where the subscription or service pools become full, causing the application to assert and terminate.
A patch has been released in Open5GS version 2.7.8, which replaces the assertion on pool exhaustion with a graceful error handling approach. This allows the NRF to reject excessive subscription or service requests without crashing.
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/commit/819db11a08b9736a3576c4f99ceb28f7eb99523a | [email protected] | Patch |
| https://github.com/open5gs/open5gs/issues/4465 | [email protected] | ExploitIssue Tracking |
| https://github.com/open5gs/open5gs/issues/4466 | [email protected] | ExploitIssue Tracking |
| https://github.com/open5gs/open5gs/pull/4534 | [email protected] | Issue TrackingPatch |
| https://vuldb.com/submit/817029 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/submit/817030 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/vuln/364331 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/vuln/364331/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 18, 2026 | Initial Analysis | [email protected] |
| May 17, 2026 | New CVE Received | [email protected] |