CVE-2026-105632
Plane is an open-source project management tool
- Risk score
- 57/100
- CVSS
- 8.7 v4.0
- Exploit chance (30 days)
- 0.3%
- Published
- 5 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- Plane is an open-source project management tool. Prior to 1.4.0, the GraphQL joinProject mutation lets any workspace member add themselves to any project in that workspace including network=0 (secret/private) projects they were never invited to and grants them a full Member role (read + write). The resolver checks onl…
- Affected
- See advisory
- Fix
- Upgrade the product to 1.4.0 or later.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 8.7 high
References
- https://github.com/makeplane/plane/commit/e1ef42023ab66b5e722a8750e1bc5ba0d413a3ee
- https://github.com/makeplane/plane/pull/9333
- https://github.com/makeplane/plane/releases/tag/v1.4.0
- https://github.com/makeplane/plane/security/advisories/GHSA-45hc-q4mw-jhxm
- https://github.com/makeplane/plane/security/advisories/GHSA-45hc-q4mw-jhxm
Original description
Plane is an open-source project management tool. Prior to 1.4.0, the GraphQL joinProject mutation lets any workspace member add themselves to any project in that workspace including network=0 (secret/private) projects they were never invited to and grants them a full Member role (read + write). The resolver checks only workspace-level membership/role and never checks the target project's visibility (network). This collapses project-level tenant isolation within a workspace: a low-privilege member can read and modify confidential data in every private project. This issue is fixed in 1.4.0.
Last activity 5 Oct 2026. Patch Forecast updates every hour.