CVE-2026-28433
mediumpriority · track · 17OT risk · elevatedEPSS 0.002 · 14 %ileEUUSEPSS · scored 2026-10-28
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 0.6–4.3
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (2)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (5)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2026-28433cnnvd
- https://github.com/misskey-dev/misskey/releasesPatchcnnvd
- https://github.com/misskey-dev/misskey/security/advisories/GHSA-g6hj-33h7-6fq8cnnvd
- https://github.com/misskey-dev/misskey/security/advisories/GHSA-g6hj-33h7-6fq8enisa_euvd
- https://github.com/misskey-dev/misskey/security/advisories/GHSA-g6hj-33h7-6fq8MitigationVendor Advisorynvd
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