Payload is a free and open source headless content management system. In versions before 3.90.0 and canary versions before 4.0.0-canary.34, a crafted request to the public first-register operation can execute code remotely when local authentication is enabled and no initial user has been created. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-1321",
"CWE-94"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105858.json",
"unresolved_ranges": [
{
"extracted_events": [
{
"introduced": "4.0.0-canary.0"
},
{
"fixed": "4.0.0-canary.34"
}
],
"source": "AFFECTED_FIELD"
}
]
}