CVE-2026-46713 — Misskey: JSON-LD signature validation + compaction may lead to improper activity handling
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 co…
Published: 2026-08-03 · CVSS: 9.2 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7