USN-8366-1

It was discovered that Luanti, when using LuaJIT, did not properly enforce Lua sandbox restrictions. An attacker could possibly use this issue to execute arbitrary code. (CVE-2026-40959)

It was discovered that Luanti did not properly restrict access to insecure environments. An attacker could possibly use this issue to obtain unintended access to the insecure environment or HTTP API. (CVE-2026-40960)

References

Affected packages

Ubuntu:25.10 / luanti

Package

Name: luanti
Purl: pkg:deb/ubuntu/luanti?arch=source&distro=questing

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

5.10.0+dfsg-5+deb13u1build0.25.10.1

Affected versions

5.*

5.10.0+dfsg-5

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "5.10.0+dfsg-5+deb13u1build0.25.10.1",
            "binary_name": "luanti"
        },
        {
            "binary_version": "5.10.0+dfsg-5+deb13u1build0.25.10.1",
            "binary_name": "luanti-data"
        },
        {
            "binary_version": "5.10.0+dfsg-5+deb13u1build0.25.10.1",
            "binary_name": "luanti-server"
        },
        {
            "binary_version": "5.10.0+dfsg-5+deb13u1build0.25.10.1",
            "binary_name": "minetest"
        },
        {
            "binary_version": "5.10.0+dfsg-5+deb13u1build0.25.10.1",
            "binary_name": "minetest-data"
        },
        {
            "binary_version": "5.10.0+dfsg-5+deb13u1build0.25.10.1",
            "binary_name": "minetest-server"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8366-1.json"

cves_map

{
    "ecosystem": "Ubuntu:25.10",
    "cves": [
        {
            "id": "CVE-2026-40959",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "id": "CVE-2026-40960",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}

Ubuntu:26.04:LTS / luanti