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 or disabled. This vulnerability is fixed in 2026.3.1.

Project Subscriptions

Vendors Products
Misskey Subscribe
Misskey Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Tue, 10 Mar 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 10 Mar 2026 14:15:00 +0000

Type Values Removed Values Added
First Time appeared Misskey
Misskey misskey
Vendors & Products Misskey
Misskey misskey

Mon, 09 Mar 2026 21:45:00 +0000

Type Values Removed Values Added
Description 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 or disabled. This vulnerability is fixed in 2026.3.1.
Title HTTP signature verification can be bypassed
Weaknesses CWE-347
References
Metrics cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N'}


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-03-10T14:45:12.846Z

Reserved: 2026-02-27T15:54:05.137Z

Link: CVE-2026-28432

cve-icon Vulnrichment

Updated: 2026-03-10T14:45:07.659Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-03-10T07:43:35.770

Modified: 2026-03-11T13:53:47.157

Link: CVE-2026-28432

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-03-10T14:06:57Z

Weaknesses