Addresses the confirmed High/Medium findings of the granular-collection-
permissions security audit:
- H-1: bind direct (non-sync) cipher access to a confirmed membership in the
cipher's organization, and harden the user/group collection access-flag
queries to require org consistency plus confirmed status. Revoked/invited
members can no longer reach ciphers via stale assignment rows.
- H-2: validate group ids against the org before mutating group membership in
edit_member, and reject cross-org group<->membership links in GroupUser::save
and Group::is_in_full_access_group.
- H-3: fully pre-validate collections/groups/users in bulk-access and collection
create before any mutation, and reject cross-org collection<->group links in
CollectionGroup::save.
- M-1: require Manage Users for the full member list and Manage Users/Groups for
group details (new ManageUsersOrGroupsHeaders guard).
- M-2: validate the whole bulk-access request before the destructive
delete/replace so an invalid element can't leave partial state behind.
- M-3: bounds-validate import collection relationships before writing and
propagate cipher-save errors instead of discarding them.
tom27052006
a992695c00