CVE-2026-77170

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-77170
StatePUBLISHED
Assignerhackerone
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-18 02:17:07 UTC
Updated2026-09-18 20:17:22 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.0 4.3 MEDIUM from [email protected]

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

EPSS: 0.001530000 probability, percentile 0.048040000 (date 2026-09-21)

Problem Types: CWE-284 | CWE-284 CWE-284 Improper Access Control - Generic

VersionSourceTypeScoreSeverityVector
3.0[email protected]Secondary4.3MEDIUMCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
3.0CNADECLARED4.3MEDIUMCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Nextcloud Deck affected 1.16.0 1.18.0 semver Not specified

References

ReferenceSourceLinkTags
hackerone.com/reports/3599383 [email protected] hackerone.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Dang Hung Vi (vidang04) (en)

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