Vulnerability Description
Misskey is an open source, federated social media platform. All Misskey servers running versions 10.93.0 and later, but prior to 2026.3.1, contain a vulnerability that allows importing other users' data due to lack of ownership validation. The impact of this vulnerability is estimated to be relatively low, as bad actors would require the ID corresponding to the target file for import. This vulnerability is fixed in 2026.3.1.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Misskey | Misskey | >= 10.93.0, < 2026.3.1 |
Related Weaknesses (CWE)
References
- https://github.com/misskey-dev/misskey/security/advisories/GHSA-g6hj-33h7-6fq8MitigationVendor Advisory
FAQ
What is CVE-2026-28433?
CVE-2026-28433 is a vulnerability with a CVSS score of 4.3 (MEDIUM). Misskey is an open source, federated social media platform. All Misskey servers running versions 10.93.0 and later, but prior to 2026.3.1, contain a vulnerability that allows importing other users' da...
How severe is CVE-2026-28433?
CVE-2026-28433 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-28433?
Check the references section above for vendor advisories and patch information. Affected products include: Misskey Misskey.