CVE-2026-28433

Misskey is an open source, federated social media platform. All Misskey servers running versions 10.93.0 and later, but prior to 2026.3.1, contain a vulnerability that allows importing other users' data due to lack of ownership validation. The impact of this vulnerability is estimated to be...

PT-2026-24120

Name of the Vulnerable Software and Affected Versions Misskey versions 8.45.0 through 2026.3.0 Description Misskey, an open source, federated social media platform, has an issue where insufficient permission checks and proper input validation can allow unauthorized access to data. This can occur...

PT-2026-24121

Name of the Vulnerable Software and Affected Versions Misskey versions prior to 2026.3.1 Description Misskey is a federated social media platform. All servers prior to version 2026.3.1 are susceptible to an issue that allows bypassing HTTP signature verification. This affects all servers, even...