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Medium 4.3Published Sep 18, 2026
CVE-2026-77170The Deck config API allows authenticated users to set board-scoped configuration keys for arbitrary board IDs without validating whether the user owns or has permission to manage the referenced board.
Updated under an hour ago ()
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It affects Nextcloud Deck. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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The Deck config API allows authenticated users to set board-scoped configuration keys for arbitrary board IDs without validating whether the user owns or has permission to manage the referenced board.
- CVSS
- 4.3 MEDIUM (v3.0, CNA)CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- Weakness (CWE)
- CWE-284
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- hackerone
- NVD analysis
- Deferred
- Record last updated
- Sep 18, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Nextcloud Deck nextcloud:deck (from the name) | from 1.16.0 through 1.18.0 | CNA record |
References
- https://hackerone.com/reports/3599383
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.