Unrated severityNVD Advisory· Published Aug 3, 2026· Updated Aug 4, 2026
Misskey: JSON-LD signature validation + compaction may lead to improper activity handling
CVE-2026-46713
Description
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.
AI Insight
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Affected products
1- Range: 12.37.0 - 2026.5.4
Patches
Vulnerability mechanics
References
2- github.com/misskey-dev/misskey/releases/tag/2026.5.4mitrex_refsource_MISC
- github.com/misskey-dev/misskey/security/advisories/GHSA-w8x2-gpq6-jxvfmitrex_refsource_CONFIRM
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