Misskey is an open source, federated social media platform. Versions 12.37.0 and later, but prior to 2026.5.4, contain a vulnerability in the JSON-LD signature validation and compaction process that allows spoofed activities to be accepted as valid. This issue has been fixed in version 2026.5.4.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-347"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46713.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "12.37.0"
},
{
"fixed": "2026.5.4"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"original_tag": "2026.5.4",
"range": [
{
"fixed": "4aa1d9ffc851a7824cb72b84ec01c3f65613463c"
}
],
"source": "REFERENCES_TAG"
},
{
"range": [
{
"introduced": "0"
},
{
"fixed": "2026.5.4"
}
],
"source": "DESCRIPTION"
}
]
}