Files
puter/src/backend
Juan Castro 3e3d02bafe fix: stop disclosing invite addresses to apps, tokens and delegates
getShares (and stat's return_shares, which runs the same listing) gated
on #assertCanManage's default 'see' mode, so any credential that could
see the node got every unclaimed invite's raw email — including an app
handed one file by the picker, a list-scoped token on the stat surface,
and a manage delegate reading the owner's invitees.

Two bounds, matching the invariant clientShare.ts already claimed:

- An invite's address goes only to the item's owner and to whoever sent
  it, and never to an app or token. A delegate can revoke only what they
  issued, so withholding costs them nothing they could act on.
- An app or token must hold manage reach of its own to read the listing
  at all; it answers for the ancestors too, which is not what being
  handed one file grants. tryListSharesOf turns that into an empty
  shares array, so stat itself keeps working.

The share dialog names an unattributable invite rather than rendering a
blank row with a dead revoke button.

Closes PUT-1806.
2026-09-16 18:59:10 -04:00
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