CVE-2026-104978
Plane is an open-source project management tool
- Risk score
- 53/100
- CVSS
- 8.2 v3.1
- 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, Plane's project invitation list endpoint is accessible to any authenticated user who knows the workspace slug and project ID, while the public project invitation join endpoint accepts an invitation based only on a submitted email address. When a pending …
- Affected
- See advisory
- Fix
- Upgrade the product to 1.4.0 or later.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 8.2 high
References
- https://github.com/makeplane/plane/commit/14a4c22f94eac1582439e41112213f976c6a6cf7
- https://github.com/makeplane/plane/pull/9308
- https://github.com/makeplane/plane/releases/tag/v1.4.0
- https://github.com/makeplane/plane/security/advisories/GHSA-g36h-p63v-g9c7
- https://github.com/makeplane/plane/security/advisories/GHSA-g36h-p63v-g9c7
Original description
Plane is an open-source project management tool. Prior to 1.4.0, Plane's project invitation list endpoint is accessible to any authenticated user who knows the workspace slug and project ID, while the public project invitation join endpoint accepts an invitation based only on a submitted email address. When a pending invitation targets an email address that has not registered with Plane, an attacker can enumerate the invitation, register an account using the invited email without mailbox verification, and accept the invitation. The attacker-controlled account is then added to the target workspace and project. This issue is fixed in 1.4.0.
Last activity 5 Oct 2026. Patch Forecast updates every hour.