Improper Authorization in Misskey - CVE-2026-48115
Published: May 23, 2026
Vulnerability identifier: #VU132174
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-48115
CWE-ID: CWE-285
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose limited portions of data.
The vulnerability exists due to improper authorization in Server Announcements API when handling requests. A remote user can send a request to disclose limited portions of data.
The issue occurs regardless of whether federation is enabled.
Affected software
Misskey
How to mitigate CVE-2026-48115
Install security update from vendor's website.
Misskey - update to 2026.5.4