ZITADEL is an open source identity management platform. Prior to 4.15.1, ZITADEL's event store validation can retain the original resource owner for a deleted user identifier, causing a later user recreated with the same identifier in another organization to be provisioned under the original organization and exposed to that organization's administrator. This issue is fixed in version 4.15.2.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-284",
"CWE-639"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55670.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "4.15.2"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"fixed": "a939b847d90c3370bd162064e57764b89c01be46"
}
],
"source": "REFERENCES_COMMIT"
},
{
"original_tag": "v4.15.2",
"range": [
{
"fixed": "c53d9774d4272d3cebeee4131012c20bd77b9dfb"
}
],
"source": "REFERENCES_TAG"
}
]
}