CVE-2026-104975: Authorization Bypass Through User-Controlled Key

Plane is an open-source project management tool. Prior to 1.4.0, Plane's dashboard asset endpoints in plane/app/views/asset/v2.py were remediated for two cross-tenant asset IDORs, CVE-2026-27705 and CVE-2026-46558. Those fixes added a membership check and projectid and workspaceslug scoping to th...

PT-2026-106085

Plane is an open-source project management tool. Prior to 1.4.0, Plane's magic-code email login uses a six-digit numeric OTP with approximately 20 bits of entropy. The verifier has no per-code failed-attempt counter, and an incorrect code does not increment a counter, invalidate the Redis entry, ...

PT-2026-106081

Plane is an open-source project management tool. Prior to 1.3.0, the ProjectMemberViewSet.partial update method allows any project member, including a user with the lowest GUEST role, to modify another project member's role. The authorization check prevents assigning a role higher than the...

PT-2026-106035

Plane is an open-source project management tool. Prior to 1.4.0, BulkDeleteIssuesEndpoint and SubIssuesEndpoint in apps/api/plane/app/views/issue/ accept body- or URL-supplied issue IDs and operate on them without checking that the IDs belong to the caller's workspace and project. The permission...

PT-2026-106084

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...

PT-2026-106039

Plane is an open-source project management tool. Prior to 1.4.0, DuplicateAssetEndpoint fetches a source FileAsset without limiting it to the caller's workspace, allowing cross-workspace asset duplication. WorkspaceFileAssetEndpoint and the legacy FileAssetEndpoint omit workspace authorization,...

PT-2026-106086

Plane is an open-source project management tool. Prior to 1.4.0, Plane's signup flow creates a logged-in User row for any submitted email without an out-of-band ownership check, while User.email is unique=True. The authenticated user can call GET /api/users/me/workspaces/invitations/, which retur...

PT-2026-106028

Plane is an open-source project management tool. Prior to 1.4.0, Plane exposes the workspace-scoped GET /api/assets/v2/workspaces/workspace slug/download/asset id/ endpoint for project-bound FileAsset objects without enforcing access to the asset's owning project. An authenticated user who belong...

PT-2026-106030

Plane is an open-source project management tool. Prior to 1.4.0, GET /api/v1/workspaces/slug/projects/project id/members/ returns the complete project-member roster, including each member's email address, first and last name, display name, avatar, and role. ProjectMemberPermission gates the...

PT-2026-106037

Plane is an open-source project management tool. Prior to 1.4.0, the cycle-issues endpoint accepts issue UUIDs in the request body without validating that they belong to the caller's workspace. An authenticated user can add issues from any workspace to a cycle they control. If a victim issue is...

PT-2026-106022

Plane is an open-source project management tool. Prior to 1.4.0, the unauthenticated public issues endpoint accepts group by and sub group by query parameters and passes them without an allowlist to grouped paginators, where they are used as ORM field names by Ffield, .valuesfield, .order byfield...

CVE-2026-104956: Improper Neutralization of Special Elements in Data Query Logic

Plane is an open-source project management tool. Prior to 1.4.0, the unauthenticated public issues endpoint accepts groupby and subgroupby query parameters and passes them without an allowlist to grouped paginators, where they are used as ORM field names by Ffield, .valuesfield, .orderbyfield, an...

PT-2026-106038

Plane is an open-source project management tool. From 0.13 until 1.4.0, InstanceAdminSignUpEndpoint in apps/api/plane/license/api/views/admin.py:89-117, 173-229 uses InstanceAdmin.objects.first for the first-admin check and performs account creation without an atomic transaction, row lock,...

PT-2026-106087

Plane is an open-source project management tool. Prior to 1.4.0, Plane trusts email addresses returned by Gitea OAuth and by self-managed GitLab OAuth deployments where email confirmation is disabled, without verifying that the provider authenticated ownership of the address. An attacker can set ...

CVE-2026-104962: Missing Authorization

Plane is an open-source project management tool. Prior to 1.4.0, GET /api/v1/workspaces/slug/projects/projectid/members/ returns the complete project-member roster, including each member's email address, first and last name, display name, avatar, and role. ProjectMemberPermission gates the...

CVE-2026-104979: Improper Neutralization of Input During Web Page Generation

Plane is an open-source project management tool. Prior to 1.4.0, IntakeIssuePublicViewSet.create in Plane v1.3.1 writes descriptionhtml through Issue.objects.create... without calling validatehtmlcontent from nh3. Any authenticated user, including a new user with no workspace memberships, can pla...

PT-2026-106029

Name of the Vulnerable Software and Affected Versions Plane versions prior to 1.4.0 Description WorkspaceOwnerPermission does not verify if the is active variable is set to True when validating if a user is a workspace owner. This allows a deactivated user to maintain authorization and retain...

CVE-2026-105636: Server-Side Request Forgery (SSRF)

Plane is an open-source project management tool. Prior to 1.4.0, the webhook delivery task in apps/api/plane/bgtasks/webhooktask.py calls requests.post without allowredirects=False and does not validate redirect targets. validateurl blocks private, loopback, link-local, and reserved addresses in...

CVE-2026-104978: Incorrect Authorization

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...

CVE-2026-104973: Server-Side Request Forgery (SSRF)

Plane is an open-source project management tool. Prior to 1.4.0, the fix for CVE-2026-30242 validates webhook IP addresses only when the webhook is created in apps/api/plane/app/serializers/webhook.py. The delivery task in apps/api/plane/bgtasks/webhooktask.py performs a separate DNS resolution...