CVE-2026-82984: medium-severity vulnerability in Nextcloud Server
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 4.3epss 0.3%
When a team was configured as "visible to everyone", the web UI correctly blocked non-members from viewing the team ("You are not a member of ..."), but the resources API endpoint could still be called directly, allowing any authenticated non-member to enumerate the team's internal resources and their identifiers.
This does not grant access to the contents of the discovered resources themselves, only their existence, names, and identifiers.
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Affected products
Nextcloud · ServerRelated CVEs — Nextcloud Server
In the same product, most dangerous first.
References
https://hackerone.com/reports/3511955