CVE-2026-104979

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...

CVE-2026-104973

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...

CVE-2026-105639

The open-source project management tool Plane is vulnerable to a pre-auth workspace invitation hijack prior to version 1.4.0 . The flaw exists because the signup flow creates a logged-in user for any submitted email without an out-of-band ownership check, while the User.email field is unique. An ...

EUVD-2026-92595

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...

CVE-2026-105639 Plane: Pre-auth workspace invitation hijack via email-squat and self-served invitation token leak in Plane

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...

CVE-2026-105639 Plane: Pre-auth workspace invitation hijack via email-squat and self-served invitation token leak in Plane

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...

CVE-2026-105639 Plane: Pre-auth workspace invitation hijack via email-squat and self-served invitation token leak in Plane

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...

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-2026-105635

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...

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 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 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-2026-105628

The open-source project management tool Plane is vulnerable to Server-Side Request Forgery (SSRF) in versions prior to 1.4.0 . The flaw exists in the OAuth avatar synchronization flow, where the application fetches an avatar_url from provider user data via a server-side HTTP request. Because the ...

CVE-2026-105628 Plane: OAuth Avatar Redirect SSRF Leads to Internal Data Exfiltration via Static Asset Endpoint

Plane is an open-source project management tool. Prior to 1.4.0, Plane's OAuth avatar synchronization flow fetches avatarurl from provider user data through a server-side HTTP request without internal IP validation and follows redirects by default. An attacker can provide an avatar URL that...

CVE-2026-105628 Plane: OAuth Avatar Redirect SSRF Leads to Internal Data Exfiltration via Static Asset Endpoint

Plane is an open-source project management tool. Prior to 1.4.0, Plane's OAuth avatar synchronization flow fetches avatarurl from provider user data through a server-side HTTP request without internal IP validation and follows redirects by default. An attacker can provide an avatar URL that...

CVE-2026-104979

The open-source project management tool Plane is vulnerable to a cross-tenant stored XSS in versions prior to 1.4.0 . The root cause is that IntakeIssuePublicViewSet.create in Plane v1.3.1 writes description_html via Issue.objects.create(...) without invoking validate_html_content from nh3 . This...

EUVD-2026-92538

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...

CVE-2026-104979 Plane: Cross-tenant stored XSS in intake enables account takeover

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...