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CVE-2026-77170

MEDIUM
4.3
CVSS Score
Published: September 18, 2026 at 01:26 AM UTC
Updated: September 18, 2026 at 08:17 PM UTC
1 product affected across 1 vendorDeck

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Deck· Nextcloudnextcloud-app
60%
1.16.0 ≤ v ≤ 1.18.01.16.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Source: cverecord
https://hackerone.com/reports/3599383

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUMhackerone
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-284

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