USN-8485-1

It was discovered that libyang incorrectly handled certain metadata list pointers. An attacker could use this issue to cause libyang to crash, resulting in a denial of service, or possibly execute arbitrary code.

References

Affected packages

Ubuntu:25.10 / libyang

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

3.13.5-2ubuntu0.1

Affected versions

3.*

3.7.8-3

3.12.2-1

3.12.2-1ubuntu1

3.13.5-2

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "3.13.5-2ubuntu0.1",
            "binary_name": "libyang3"
        },
        {
            "binary_version": "3.13.5-2ubuntu0.1",
            "binary_name": "libyang3-tools"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:25.10",
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                    "type": "CVSS_V4"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2026-41401"
        }
    ]
}

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8485-1.json"

Ubuntu:26.04:LTS / libyang