CVE-2026-48115

UNKNOWN 0.0

Misskey: Improper Authorization in the Announcements API

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

Misskey is an open source, federated social media platform. All Misskey servers running versions 2024.5.0 and later, but prior to 2026.5.4, contain a vulnerability in the Server Announcements API where insufficient permission checks allow attackers to access limited portions of data that they normally couldn't view. This vulnerability occurs whether or not federation is enabled. This issue has been fixed in version 2026.5.4.

CWE	CWE-285
Vendor	misskey-dev
Product	misskey
Published	Aug 3, 2026

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Affected Versions

misskey-dev / misskey

>= 2024.5.0, < 2026.5.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/misskey-dev/misskey/security/advisories/GHSA-j49q-76hx-mv8f github.com: https://github.com/misskey-dev/misskey/releases/tag/2026.5.4