# CVE-2026-104975: Plane cross-project asset IDOR in Spaces app

Source: https://junglewise.ai/threats/cve-2026-104975-plane-is-an-open-source-project-management-tool-prior-to-1-4-0  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-05. Updated: 2026-10-05  
License: CC BY 4.0 with a link back

CVE-2026-104975 · Severity: high · CVSS 7.1 · Published 2026-10-05

Plane is an open-source project management tool used for team collaboration and task tracking. An attacker could read, overwrite, or restore files and assets across different projects and workspaces by exploiting missing access controls in the Spaces app's public board operations, potentially exposing sensitive project data or corrupting assets belonging to other teams.

Technologies: [Plane](https://junglewise.ai/threats/technologies/plane-plane). Vendors: [Plane](https://junglewise.ai/threats/vendors/plane).

## Quick answers

**Is CVE-2026-104975 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-104975 being exploited in the wild.

**How severe is CVE-2026-104975?** High severity, with a CVSS score of 7.1, published 5 October 2026.

**Which products and versions are affected?** Plane before 1.4.0.

**Is there a fix for CVE-2026-104975?** Yes: fixed in 1.4.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-104975 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-104975?** Check whether you run Plane at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 1.4.0

## Technical details

The vulnerability is an insecure direct object reference (IDOR) in plane/space/views/asset.py affecting EntityAssetEndpoint and AssetRestoreEndpoint. These endpoints resolve a DeployBoard from a public anchor and operate on FileAsset rows scoped only to the board's workspace without project_id constraints or membership checks, allowing any authenticated user to access assets across project boundaries within the same workspace.

## Affected products

- Plane Plane before 1.4.0

## Timeline

- 2026-10-05: disclosed
- 2026-06-30: patched

## References

- [https://github.com/makeplane/plane/commit/4577dc3f7a6b5a198602b602a45c6b0abdc7204b](https://github.com/makeplane/plane/commit/4577dc3f7a6b5a198602b602a45c6b0abdc7204b)
- [https://github.com/makeplane/plane/pull/9288](https://github.com/makeplane/plane/pull/9288)

## Related threats

- [Plane project management missing authorization checks](https://junglewise.ai/threats/cve-2026-102985-plane-is-an-open-source-project-management-tool-in-1-3-1-and)
- [Plane order_by injection in issue-listing endpoints](https://junglewise.ai/threats/cve-2026-102988-plane-is-an-open-source-project-management-tool-prior-to-1-4-0)
- [Plane stored XSS in comments and intake descriptions](https://junglewise.ai/threats/cve-2026-102982-plane-is-an-open-source-project-management-tool-prior-to-1-4-0)
- [Plane workspace invitation token disclosure and hijack](https://junglewise.ai/threats/cve-2026-102981-plane-is-an-open-source-project-management-tool-prior-to-1-4-0)
- [Plane hardcoded Django SECRET_KEY in community deployments](https://junglewise.ai/threats/cve-2026-105641-plane-is-an-open-source-project-management-tool-prior-to-1-4-0)