Nextcloud · disclosed reports
Access Control
4 disclosed reports · $100 paid · 4 valid
Every dot is a report; the named ones are the most upvoted. Bright dots were paid a bounty. A report opens its page here: our analysis where there is one, and the link to HackerOne. The status is HackerOne's own outcome; "access needed" is only what a title states.
Open Nextcloud on HackerOne- reports
- 4
- valid
- 4
- paid a bounty
- 1
Every one of the 4 is a mark on the map. Named now: 1 to 4, most upvoted first.
- Critical broken access control: API-only delegated admin can enumerate all Team Folders and grant access to arbitrary groups
- Group admins can remove arbitrary data from "data" directory (including admin data)
- Admins can change authentication details of user configured external storage
- Tables application does not respect sharing limitations set by admin
paid a bounty
Zoom in on the map and the dots under the middle of it are named where they are.
Data as of 2026-11-15. CVE List through 2026-11-15 · EPSS of 2026-11-15 · CISA KEV checked 2026-11-15. Sources: the CVE List, CISA KEV, EPSS, NVD, nuclei templates and public bug bounty data.