Is CVE-2026-105631 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-105631 being exploited in the wild.

How severe is CVE-2026-105631?

High severity, with a CVSS score of 7.5, published 5 October 2026.

Which products and versions are affected?

Makeplane Plane prior to 1.4.0.

Is there a fix for CVE-2026-105631?

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-2026-105631 attacked?

It is attacked over the network.

Am I affected by CVE-2026-105631?

Check whether you run Makeplane 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.

CVE-2026-105631: Plane project management tool asset access control bypass

CVE-2026-105631 · Severity: high · CVSS 7.5 · Published 2026-10-05

Plane is an open-source project management and collaboration tool. Prior to version 1.4.0, it fails to properly restrict access to project assets such as file attachments and descriptions across workspace and project boundaries. A workspace member with knowledge of a specific asset identifier can download or view assets from private projects they are not assigned to, and unauthenticated attackers with a valid workspace anchor can access unpublished project assets if they know the asset identifier.

Technologies: Makeplane Plane. Vendors: Makeplane.

Quick answers

Is CVE-2026-105631 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-105631 being exploited in the wild.
How severe is CVE-2026-105631?: High severity, with a CVSS score of 7.5, published 5 October 2026.
Which products and versions are affected?: Makeplane Plane prior to 1.4.0.
Is there a fix for CVE-2026-105631?: 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-2026-105631 attacked?: It is attacked over the network.
Am I affected by CVE-2026-105631?: Check whether you run Makeplane 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) affecting multiple asset endpoints (WorkspaceFileAssetEndpoint.get, WorkspaceAssetDownloadEndpoint.get, EntityAssetEndpoint.get) that fail to scope FileAsset queries by project membership or presence. WorkspaceFileAssetEndpoint endpoints check only workspace membership rather than project membership, while EntityAssetEndpoint grants AllowAny access and validates only workspace presence, allowing authenticated workspace members or unauthenticated callers with a valid anchor to access assets from projects they are not members of. The fix in 1.4.0 adds project-level scoping to asset filters and enforces membership checks in the permission layer.

Affected products

makeplane Plane prior to 1.4.0

Timeline

2026-10-05: disclosed
2026-06-30: patched: Fix merged in commit 4577dc3f

References

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