Plane: asset download endpoints scope file lookups to the workspace (not the project / published entity) → cross-project & unauthenticated private-file disclosure

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-105631
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-05 18:17:36 UTC
Updated2026-10-05 18:17:36 UTC
DescriptionPlane is an open-source project management tool. Prior to 1.4.0, WorkspaceFileAssetEndpoint.get and WorkspaceAssetDownloadEndpoint.get resolve FileAsset records within a workspace without checking membership in the asset's project, allowing a workspace member to download assets from private projects when the asset UUID is known. EntityAssetEndpoint.get is a separate public-anchor endpoint that grants AllowAny access and scopes the lookup only to the anchor's workspace rather than its published entity or project. An unauthenticated caller who knows a valid anchor and an asset UUID can therefore retrieve issue-description or comment-description assets belonging to unpublished or private projects in that workspace. This issue is fixed in 1.4.0.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from [email protected]

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N

EPSS: 0.002370000 probability, percentile 0.135140000 (date 2026-10-06)

Problem Types: CWE-639 | CWE-639 CWE-639: Authorization Bypass Through User-Controlled Key

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.5HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N
3.1CNADECLARED7.5HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N

CVSS v3.1 Breakdown

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

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Makeplane Plane affected < 1.4.0 Not specified

References

ReferenceSourceLinkTags
github.com/makeplane/plane/releases/tag/v1.4.0 [email protected] github.com
github.com/makeplane/plane/commit/4577dc3f7a6b5a198602b602a45c6b0abdc7204b [email protected] github.com
github.com/makeplane/plane/pull/9288 [email protected] github.com
github.com/makeplane/plane/security/advisories/GHSA-85h2-mhcc-xfmw [email protected] github.com
github.com/makeplane/plane/pull/9372 [email protected] github.com
github.com/makeplane/plane/commit/e63f0c3b3404d669ae05dd9050aab72292f87e5c [email protected] github.com
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