CVE-2026-8746: Open5GS NRF nghttp2-server.c discover_handler use after free
A security flaw has been discovered in Open5GS up to 2.7.7. Affected by this issue is the function discoverhandler in the library /lib/sbi/nghttp2-server.c of the component NRF. The manipulation results in use after free. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-8746?
CVE-2026-8746 is classified as a high severity vulnerability due to a use-after-free flaw that can lead to potential remote code execution.
How do I fix CVE-2026-8746?
To fix CVE-2026-8746, upgrade Open5GS to version 2.7.8 or later, which addresses this vulnerability.
What component is affected by CVE-2026-8746?
CVE-2026-8746 affects the NRF component in Open5GS, specifically the function discover_handler in nghttp2-server.c.
What is the impact of CVE-2026-8746?
The impact of CVE-2026-8746 could allow an attacker to exploit the use after free condition to execute arbitrary code on the affected system.
Which versions of Open5GS are affected by CVE-2026-8746?
Open5GS versions up to and including 2.7.7 are affected by CVE-2026-8746.