CVE-2026-58270

CVE-2026-58270 · Sync-in Server has a ReDoS via Unsanitized Regex in Sync Diff `pathFilters`

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Sync-in Server is an open-source platform for file storage, sharing, collaboration, and syncing. Prior to version 2.4.0, the sync diff endpoint compiles a user-supplied string into a `RegExp` with no complexity validation. A catastrophic-backtracking pattern (e.g. `^(a+)+b`) blocks the Node.js event loop, making the entire server unresponsive to all users until the container is restarted. Version 2.4.0 patches the issue.

CVSS 6.5 · Moyenne · EPSS 0,4% · Correctif disponible

Publication

2026-09-21T20:28:53.535Z

Mise à jour

2026-09-22T14:06:46.587Z

Pile logicielle: node

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