CVE-2026-28432

HighCVSS 7.5/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Mar 10, 2026
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2026-28432: High severity, CVSS 7.5 | Vulnix