CVE-2026-103937
HIGH
8,7
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
Description
AI Translation Available
Misskey is an open source, federated social media platform. From 13.0.0 until 2025.4.1 and from 2025.5.0 until 2026.7.0, cleanup processing may not execute during file uploads. Repeated uploads can exhaust storage or file descriptors and deny service regardless of whether federation is enabled. This issue is fixed in version 2026.7.0.
459
Incomplete Cleanup
DraftCommon Consequences
Security Scopes Affected:
Other
Confidentiality
Integrity
Potential Impacts:
Other
Read Application Data
Modify Application Data
Dos: Resource Consumption (Other)
Applicable Platforms
All platforms may be affected
https://github.com/misskey-dev/misskey/commit/3f28489fb856e6e07a16290f3ea1e1261…
https://github.com/misskey-dev/misskey/pull/17750
https://github.com/misskey-dev/misskey/releases/tag/2026.7.0
https://github.com/misskey-dev/misskey/security/advisories/GHSA-m9xp-2fvm-pfmq