CVE-2025-25306
criticalpriority · track · 37EPSS 0.002 · 7 %ileEUUSEPSS · scored 2026-10-27
Misskey is an open source, federated social media platform. The patch for CVE-2024-52591 did not sufficiently validate the relation between the `id` and `url` fields of ActivityPub objects. An attacker can forge an object where they claim authority in the `url` field even if the specific ActivityPub object type require authority in the `id` field. Version 2025.2.1 addresses the issue.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.5–9.3
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 (8)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2025-25306cnnvd
- https://github.com/misskey-dev/misskey/releases/tag/2025.2.1cnnvd
- https://github.com/misskey-dev/misskey/security/advisories/GHSA-6w2c-vf6f-xf26cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2025-25306cnnvd
- https://github.com/misskey-dev/misskey/releases/tag/2025.2.1enisa_euvd
- https://github.com/misskey-dev/misskey/security/advisories/GHSA-6w2c-vf6f-xf26enisa_euvd
- https://github.com/misskey-dev/misskey/releases/tag/2025.2.1Patchnvd
- https://github.com/misskey-dev/misskey/security/advisories/GHSA-6w2c-vf6f-xf26Third Party Advisorynvd
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