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.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| misskey-dev | misskey | affected |
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Fixes
Solution
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Workaround
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References
History
Mon, 03 Aug 2026 21:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | Misskey: Improper Authorization in the Announcements API | |
| Weaknesses | CWE-285 | |
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| Metrics |
cvssV4_0
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Projects
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MITRE
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-08-03T21:21:59.281Z
Reserved: 2026-05-20T18:46:58.289Z
Link: CVE-2026-48115
Vulnrichment
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Weaknesses