Plane is an open-source project management tool. Prior to 1.4.0, self-hosted Plane deployments allow unauthenticated GET requests to api/workspaces/{slug}/invitations/{pk}/join/ through WorkspaceJoinEndpoint, whose WorkSpaceMemberInviteSerializer exposes the secret invitation token directly and through get_invite_link. An external attacker can retrieve a token intended for another user and submit it to the invitation acceptance flow, joining the workspace without receiving the invitation and gaining the role assigned to the invite. This issue is fixed in version 1.4.0.
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Tue, 13 Oct 2026 17:00:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Makeplane
Makeplane plane |
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| Vendors & Products |
Makeplane
Makeplane plane |
Tue, 13 Oct 2026 15:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Plane is an open-source project management tool. Prior to 1.4.0, self-hosted Plane deployments allow unauthenticated GET requests to api/workspaces/{slug}/invitations/{pk}/join/ through WorkspaceJoinEndpoint, whose WorkSpaceMemberInviteSerializer exposes the secret invitation token directly and through get_invite_link. An external attacker can retrieve a token intended for another user and submit it to the invitation acceptance flow, joining the workspace without receiving the invitation and gaining the role assigned to the invite. This issue is fixed in version 1.4.0. | |
| Title | Plane: Unauthenticated Workspace Invitation Token Leakage | |
| Weaknesses | CWE-200 CWE-639 |
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| References |
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| Metrics |
cvssV3_1
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Projects
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-10-13T15:34:25.761Z
Reserved: 2026-09-29T20:46:08.333Z
Link: CVE-2026-102981
No data.
Status : Deferred
Published: 2026-10-13T16:17:10.120
Modified: 2026-10-13T16:17:10.250
Link: CVE-2026-102981
No data.
OpenCVE Enrichment
Updated: 2026-10-13T17:00:17Z