CVE-2026-1049634.3MediumCWE-200

CVE-2026-104963: Plane: Workspace cycle and module endpoints missing project-membership filter expose private project metadata to any workspace member

makeplane · plane

Affected: makeplane plane · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.3%probability of exploitation in the next 30 days

16th percentile

050100

Higher than 16% of scored CVEs

4.3MediumCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

Plane is an open-source project management tool. Prior to 1.4.0, GET /api/workspaces/{slug}/cycles/ through WorkspaceCyclesEndpoint and GET /api/workspaces/{slug}/modules/ through WorkspaceModulesEndpoint return records from every project in a workspace without checking whether the requester belongs to each project. Any authenticated workspace member, including a Guest with access to only one project, can enumerate names, descriptions, sprint dates, issue counts, progress snapshots, external integration IDs, linked URLs, and member lists for cycles and modules in private projects. The sibling WorkspaceLabelsEndpoint and WorkspaceStatesEndpoint apply the correct project__project_projectmember__member=request.user filter, making the cycle and module endpoints inconsistent outliers. This issue is fixed in 1.4.0.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

makeplane · plane< 1.4.0

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Information Exposure · Information Disclosure
Vendor: makeplane
Published: October 2026
Band: Unlikely (under 1%), October 2026

CoverageNo articles yet

No CyberSIXT article names CVE-2026-104963 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.