Open5GS NRF nghttp2-server.c discover_handler use after free_CVE-2026-8746

5.3 / 10

MEDIUM

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

Description

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.

Basic Information

ID CVE-2026-8746

Source VulDB

Published May 17, 2026 at 10:15

Affected Product

Vendor n/a

Product Open5GS

Version 2.7.0

Affected Versions n/a Open5GS 2.7.0
n/a Open5GS 2.7.1
n/a Open5GS 2.7.2
n/a Open5GS 2.7.3
n/a Open5GS 2.7.4
n/a Open5GS 2.7.5
n/a Open5GS 2.7.6
n/a Open5GS 2.7.7

CWE Classification

CWE-416 CWE-119

References

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    "published": "2026-05-17T10:15:08.674Z",
    "modified": "2026-05-17T10:15:08.674Z",
    "type": "cve",
    "title": "Open5GS NRF nghttp2-server.c discover_handler use after free",
    "source": "VulDB",
    "references": "https://vuldb.com/vuln/364333\nhttps://vuldb.com/vuln/364333/cti\nhttps://vuldb.com/submit/817032\nhttps://github.com/open5gs/open5gs/issues/4476\nhttps://github.com/open5gs/open5gs/",
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    "sourceHref": "",
    "cvss": {
        "score": 5.3,
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