Misskey: Lack of proper permission checks in Direct Messaging feature
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
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| misskey-dev | misskey | affected |
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No data.
No data.
| Vendor | Product | Versions | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Misskey | Misskey |
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No CVSS v3.1
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.364% probability within 30 days)
| Type | Values Removed | Values Added |
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| First Time appeared |
Misskey
Misskey misskey |
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| Vendors & Products |
Misskey
Misskey misskey |
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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| Description | Misskey is an open source, federated social media platform. Versions 2025.3.2 and later, but prior to 2026.5.4, contain a vulnerability where a lack of proper permission checks allows access to certain data points from the Direct Messages (formerly Chat) feature, regardless of account permissions. This vulnerability occurs whether or not federation is enabled. Notes created with "specified" visibility (formerly "direct" visibility) are not affected. This issue has been fixed in version 2026.5.4. | |
| Title | Misskey: Lack of proper permission checks in Direct Messaging feature | |
| Weaknesses | CWE-639 | |
| References |
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| Metrics |
cvssV4_0
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