CVE-2026-8746CWE-119CWE-416

Open5GS NRF nghttp2-server.c discover_handler use after free

Medium · published May 17, 2026

CVSS v4.0
5.3
EPSS
1%
Percentile
51.2
In the wild
Unconfirmed
What it is

A security flaw has been discovered in Open5GS up to 2.7.7. Affected by this issue is the function discover_handler 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.

The record
Technical detail
CVSS v4.0
5.3 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
EPSS
0.00666 · 51.2th percentile
Weaknesses
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer; CWE-416 · Use After Free
Published
2026-05-17T10:15Z
EPSS history
Timeline
  • 17 MAY 10:15Z
    Open5GS NRF nghttp2-server.c discover_handler use after free
    cvelistv5