Ghost is a Node.js content management system. From 4.22.0 until 6.54.1, a missing validation check allowed users to redeem subscription offers that were no longer active. This issue is fixed in version 6.54.1.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-20"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/70xxx/CVE-2026-70589.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "4.22.0"
},
{
"fixed": "6.54.1"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"fixed": "d91c0fc52dfc987d71a9803dbcbe6447d21b92fb"
}
],
"source": "REFERENCES_COMMIT"
}
]
}