---
id: CVE-2026-105637
title: >-
  Plane: Cross-Project Asset Hijacking via 'ProjectBulkAssetEndpoint' (sibling
  of CVE-2026-46558)
summary: >-
  Plane is an open-source project management tool. Prior to 1.4.0,
  ProjectBulkAssetEndpoint.post in apps/api/plane/app/views/asset/v2.py
  retrieves assets using id__in=asset_ids and workspace__slug=slug but does not
  constrain the query with…
severity: critical
cvss: 9.6
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N'
cvssSource: cna
cwe:
  - CWE-639
vendor: makeplane
product: plane
affected:
  - plane < 1.4.0
published: '2026-10-05'
updated: '2026-10-05'
sourceUpdated: '2026-10-05T18:04:02.780Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-105637'
references:
  - url: 'https://github.com/makeplane/plane/security/advisories/GHSA-r2hw-fff3-pjwp'
    label: 'https://github.com/makeplane/plane/security/advisories/GHSA-r2hw-fff3-pjwp'
  - url: 'https://github.com/makeplane/plane/pull/9495'
    label: 'https://github.com/makeplane/plane/pull/9495'
  - url: >-
      https://github.com/makeplane/plane/commit/15e835710c7f938e0fae9c0ee77bb8162ff436a0
    label: >-
      https://github.com/makeplane/plane/commit/15e835710c7f938e0fae9c0ee77bb8162ff436a0
  - url: 'https://github.com/makeplane/plane/releases/tag/v1.4.0'
    label: 'https://github.com/makeplane/plane/releases/tag/v1.4.0'
tags:
  - cve.org
ingestedAt: '2026-10-05T18:29:11.216Z'
---

## Overview

Plane is an open-source project management tool. Prior to 1.4.0, ProjectBulkAssetEndpoint.post in apps/api/plane/app/views/asset/v2.py retrieves assets using id__in=asset_ids and workspace__slug=slug but does not constrain the query with project_id from the URL. A workspace Guest can provide asset UUIDs from another project in the same workspace and reassign their issue_id, comment_id, page_id, draft_issue_id, or project_id to an entity the attacker controls. Plane then treats the attacker's project as the new owner and provides a presigned download URL for the hijacked file. This issue is fixed in 1.4.0.

## Affected

- `plane < 1.4.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.