CVE-2026-46713 — Misskey: JSON-LD signature validation + compaction may lead to improper activity handling

CVE-2026-46713

Misskey: JSON-LD signature validation + compaction may lead to improper activity handling PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
misskey-dev / misskey	affected >= 12.37.0, < 2026.5.4

CWE

CWE-347

References

https://github.com/misskey-dev/misskey/security/advisories/GHSA-w8x2-gpq6-jxvf
https://github.com/misskey-dev/misskey/releases/tag/2026.5.4

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.