CVE-2026-46713

UNKNOWN 0.0

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

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-347
Vendor	misskey-dev
Product	misskey
Published	Aug 3, 2026
Last Updated	Aug 3, 2026

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Affected Versions

misskey-dev / misskey

>= 12.37.0, < 2026.5.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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