CVE-2026-47746

Misskey is an open source, federated social media platform. Versions 12.37.0 and later, but prior to 2026.5.4, are vulnerable to timing attacks during JSON-LD signature validation and the compaction process. Because the JSON-LD parsing context is not shared between signature verification and...

CVE-2026-46714 Misskey: Denial of Service via Uncontrolled Recursion in Theme Compilation

Misskey is an open source, federated social media platform. IVersions 8.63.0 and later, but prior to 2026.5.4, contain a vulnerability that can cause the Misskey web client to slow down or crash when it applies a malformed theme. This issue has been fixed in version 2026.5.4...

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...

CVE-2026-28432

Misskey is an open source, federated social media platform. All Misskey servers prior to 2026.3.1 contain a vulnerability that allows bypassing HTTP signature verification. Although this is a vulnerability related to federation, it affects all servers regardless of whether federation is enabled o...

CVE-2026-28433 Misskey lacks resource ownership validation

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...

CVE-2026-28433 Misskey lacks resource ownership validation

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...

CVE-2026-28432

Misskey is an open source, federated social media platform. All Misskey servers prior to 2026.3.1 contain a vulnerability that allows bypassing HTTP signature verification. Although this is a vulnerability related to federation, it affects all servers regardless of whether federation is enabled o...

CVE-2026-28432 HTTP signature verification can be bypassed

Misskey is an open source, federated social media platform. All Misskey servers prior to 2026.3.1 contain a vulnerability that allows bypassing HTTP signature verification. Although this is a vulnerability related to federation, it affects all servers regardless of whether federation is enabled o...

CVE-2025-66482

Misskey is an open source, federated social media platform. Attackers who use an untrusted reverse proxy or not using a reverse proxy at all can bypass IP rate limiting by adding a forged X-Forwarded-For header. Starting with version 2025.9.1, an option trustProxy has been added in config file to...

CVE-2025-66482

Misskey is an open source, federated social media platform. Attackers who use an untrusted reverse proxy or not using a reverse proxy at all can bypass IP rate limiting by adding a forged X-Forwarded-For header. Starting with version 2025.9.1, an option trustProxy has been added in config file to...

EUVD-2019-2058

Malware in sbrugna...

EUVD-2023-29129

Malicious code in bioql PyPI...

EUVD-2024-46244

Malicious code in bioql PyPI...

EUVD-2025-13506

Malicious code in bioql PyPI...

EUVD-2024-30729

Malicious code in bioql PyPI...

CVE-2024-52579

Misskey is an open source, federated social media platform. Some APIs using HttpRequestService do not properly check the target host. This vulnerability allows an attacker to send POST or GET requests to the internal server, which may result in a SSRF attack.It allows an attacker to send POST or...

CVE-2024-52593

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"...

CVE-2024-52590

Misskey is an open source, federated social media platform. In affected versions missing validation in ApRequestService.signedGet allows an attacker to create fake user profiles that appear to be from a different instance than the one where they actually exist. These profiles can be used to...

CVE-2024-52592

Misskey is an open source, federated social media platform. In affected versions missing validation in ApInboxService.update allows an attacker to modify the result of polls belonging to another user. No authentication is required, except for a valid signature from any actor on any remote instanc...

CVE-2023-52139

Misskey is an open source, decentralized social media platform. Third-party applications may be able to access some endpoints or Websocket APIs that are incorrectly specified as kind or secure without the user's permission and perform operations such as reading or adding non-public content. As a...