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Nextcloud: files_lock: a write-share collaborator can place a TYPE_TOKEN lock that permanently denies the file owner, survives share revocation and account delet

🗓️ 29 May 2026 21:54:59Reported by rz1027Type 
hackerone
 hackerone
🔗 hackerone.com👁 6 Views

Write-share collaborator places permanent TYPE_TOKEN lock in Nextcloud files_lock denying owner.

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18 Sep 2026 15:36Current
CVSS 24
CVSS 3.16.5
CVSS 36.5
EPSS0.00722
SSVC
6