CVE-2023-43793

Misskey is an open source, decentralized social media platform. Prior to version 2023.9.0, by editing the URL, a user can bypass the authentication of the Bull dashboard, which is the job queue management UI, and access it. Version 2023.9.0 contains a fix. There are no known workarounds...

EUVD-2023-28808

Malicious code in bioql PyPI...

EUVD-2025-13505

Malicious code in bioql PyPI...

CVE-2025-46340

Misskey CSS style injection vulnerability (CVE-2025-46340) affects 12.0.0 up to 2025.4.0 due to inadequate validation in UrlPreviewService and MkUrlPreview, enabling arbitrary CSS in MkUrlPreview and potential de-anonymization/related client attacks. UrlPreviewService.wrap avoids non-http/https U...

CVE-2025-25306 Misskey's Incomplete Patch of CVE-2024-52591 Leads to Forgery of Federated Notes

Misskey is an open source, federated social media platform. The patch for CVE-2024-52591 did not sufficiently validate the relation between the id and url fields of ActivityPub objects. An attacker can forge an object where they claim authority in the url field even if the specific ActivityPub...

CVE-2025-24896 Misskey allows token to remain valid in cookie after signing out

Misskey is an open source, federated social media platform. Starting in version 12.109.0 and prior to version 2025.2.0-alpha.0, a login token named token is stored in a cookie for authentication purposes in Bull Dashboard, but this remains undeleted even after logout is performed. The primary...

CVE-2024-52591

Misskey is an open source, federated social media platform. In affected versions missing validation in ApRequestService.signedGet and HttpRequestService.getActivityJson allows an attacker to create fake user profiles and forged notes. The spoofed users will appear to be from a different instance...

CVE-2024-52593 Missing validation allows spoofed "origin" links in Misskey

Misskey is an open source, federated social media platform.In affected versions missing validation in NoteCreateService.insertNote, ApPersonService.createPerson, and ApPersonService.updatePerson allows an attacker to control the target of any "origin" links such as the "view on remote instance"...