CVE-2026-105636

The project management tool Plane is vulnerable to Server-Side Request Forgery (SSRF) in versions prior to 1.4.0 . The flaw exists in the webhook delivery task within apps/api/plane/bgtasks/webhook_task.py, where requests.post() is called without setting allow_redirects=False. While the applicati...

CVE-2026-105636 Plane: SSRF via HTTP redirect in webhook delivery (allow_redirects not set)

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-2026-105636 Plane: SSRF via HTTP redirect in webhook delivery (allow_redirects not set)

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...

EUVD-2026-92701

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-2026-105636 Plane: SSRF via HTTP redirect in webhook delivery (allow_redirects not set)

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-2026-105635 Plane: Unauthenticated Project Invitation Email Disclosure Enables Unauthorized Project Join Without Token

Plane is an open-source project management tool. Prior to 1.4.0, ProjectJoinEndpoint at GET /api/workspaces/slug/projects/projectid/join/pk/ uses permissionclasses = AllowAny and returns the full ProjectMemberInvite record, including its email, token, and role, to unauthenticated callers. The...

EUVD-2026-92700

Plane is an open-source project management tool. Prior to 1.4.0, ProjectJoinEndpoint at GET /api/workspaces/slug/projects/projectid/join/pk/ uses permissionclasses = AllowAny and returns the full ProjectMemberInvite record, including its email, token, and role, to unauthenticated callers. The...

CVE-2026-105635 Plane: Unauthenticated Project Invitation Email Disclosure Enables Unauthorized Project Join Without Token

Plane is an open-source project management tool. Prior to 1.4.0, ProjectJoinEndpoint at GET /api/workspaces/slug/projects/projectid/join/pk/ uses permissionclasses = AllowAny and returns the full ProjectMemberInvite record, including its email, token, and role, to unauthenticated callers. The...

CVE-2026-105635

The open-source project management tool Plane is vulnerable to unauthorized project joining in versions prior to 1.4.0 . The ProjectJoinEndpoint at GET /api/workspaces/{slug}/projects/{project_id}/join/{pk}/ incorrectly uses permission_classes = [AllowAny], allowing unauthenticated callers to ret...

CVE-2026-105635 Plane: Unauthenticated Project Invitation Email Disclosure Enables Unauthorized Project Join Without Token

Plane is an open-source project management tool. Prior to 1.4.0, ProjectJoinEndpoint at GET /api/workspaces/slug/projects/projectid/join/pk/ uses permissionclasses = AllowAny and returns the full ProjectMemberInvite record, including its email, token, and role, to unauthenticated callers. The...

CVE-2026-105634 Plane: Privilege Escalation: Project Guest Can Demote Admin/Member Roles

Plane is an open-source project management tool. Prior to 1.3.0, the ProjectMemberViewSet.partialupdate 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...

CVE-2026-105634 Plane: Privilege Escalation: Project Guest Can Demote Admin/Member Roles

Plane is an open-source project management tool. Prior to 1.3.0, the ProjectMemberViewSet.partialupdate 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...

CVE-2026-105634

The open-source project management tool Plane is vulnerable to privilege escalation in versions prior to 1.3.0 . The issue resides in the ProjectMemberViewSet.partial_update method, where an inadequate authorization check allows any project member—including those with the lowest GUEST role—to mod...

CVE-2026-105634 Plane: Privilege Escalation: Project Guest Can Demote Admin/Member Roles

Plane is an open-source project management tool. Prior to 1.3.0, the ProjectMemberViewSet.partialupdate 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...

EUVD-2026-92699

Plane is an open-source project management tool. Prior to 1.3.0, the ProjectMemberViewSet.partialupdate 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...

CVE-2026-105633 Plane: Issue Attachment Ownership Hijacking via Missing `issue_id` Scope

Plane is an open-source project management tool. Prior to 1.4.0, the V2 issue-attachment PATCH endpoint accepts issueid in the URL but omits it from the database query. A project member can use an issueid they control in the URL while targeting another user's attachment by its pk UUID. Because th...

CVE-2026-105633 Plane: Issue Attachment Ownership Hijacking via Missing `issue_id` Scope

Plane is an open-source project management tool. Prior to 1.4.0, the V2 issue-attachment PATCH endpoint accepts issueid in the URL but omits it from the database query. A project member can use an issueid they control in the URL while targeting another user's attachment by its pk UUID. Because th...

CVE-2026-105633 Plane: Issue Attachment Ownership Hijacking via Missing `issue_id` Scope

Plane is an open-source project management tool. Prior to 1.4.0, the V2 issue-attachment PATCH endpoint accepts issueid in the URL but omits it from the database query. A project member can use an issueid they control in the URL while targeting another user's attachment by its pk UUID. Because th...

CVE-2026-105633

The open-source project management tool Plane is vulnerable to an authorization bypass in the V2 issue-attachment PATCH endpoint prior to version 1.4.0 . The root cause is that the server accepts an issue_id in the URL but fails to include it in the database query, matching only on pk, workspace,...

EUVD-2026-92547

Plane is an open-source project management tool. Prior to 1.4.0, the V2 issue-attachment PATCH endpoint accepts issueid in the URL but omits it from the database query. A project member can use an issueid they control in the URL while targeting another user's attachment by its pk UUID. Because th...