CVE-2026-46558 Missing authorization in plane
Authenticated users can bypass authorization to read, copy, delete, and overwrite assets in other workspaces within the Plane project management tool.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-46558?
CVE-2026-46558 is a high-severity missing authorization vulnerability in makeplane plane, published on 10 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Plane is an open-source project management tool. Prior to version 1.3.1, there is a cross-workspace asset authorization bypass lets any authenticated user read, copy, delete, and overwrite assets in other Plane workspaces. This issue has been patched in version 1.3.1.
Which versions are affected by CVE-2026-46558?
It affects 1 product.
Products include Plane Plane.
How do I fix CVE-2026-46558?
No fix has been published for CVE-2026-46558 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-46558 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-46558 exists.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in makeplane plane
- CVE-2024-47830 Plane allows server side request forgery via /_next/image endpoint
- CVE-2026-30242 Plane: SSRF via Incomplete IP Validation in Webhook URL Serializer
- CVE-2026-39843 Plane has a Server-Side Request Forgery (SSRF) in Favicon Fetching
- CVE-2026-27706 Plane Vulnerable to Full Read SSRF via Favicon Fetching in "Add Link" Feature
- CVE-2026-30244 Plane: Unauthenticated Workspace Member Information Disclosure
Sources
Also known as GHSA-qw87-v5w3-6vxx.