In systemd 260 before 261, a local unprivileged user can trigger an assert via an IPC API call with an array or map that has a null element.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40227.json",
"cwe_ids": [
"CWE-1025"
],
"cna_assigner": "mitre"
}{
"source": [
"AFFECTED_FIELD",
"CPE_STRING"
],
"cpe": "cpe:2.3:a:systemd_project:systemd:260:-:*:*:*:*:*:*",
"extracted_events": [
{
"introduced": "260"
},
{
"fixed": "261"
},
{
"introduced": "260-NA"
},
{
"last_affected": "260-NA"
}
]
}