High
Misskey: Denial of service resulting from insufficient cleanup processing during file uploads
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.
Announced Source revision 1
Original source ↗CVE-2026-103937
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-103937
misskey
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "misskey-dev",
"product": "misskey",
"versions": [
{
"status": "affected",
"version": ">= 12.0.0, <= 13.14.2"
},
{
"status": "affected",
"version": ">= 2023.9.0-beta.1, < 2025.4.1"
},
{
"status": "affected",
"version": ">= 2025.5.0, < 2026.7.0"
}
]
}
]- Related CVEs
- CVE-2026-103937
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #22142 · Revision 1
- Added to Heist Feed
- Publisher date