Re: pgsql: Fix search_path to a safe value during maintenance operations.

On Mon, Jun 12, 2023 at 5:40 PM Jeff Davis <pgsql(at)j-davis(dot)com> wrote:

> On Mon, 2023-06-12 at 13:05 -0400, Noah Misch wrote:
> > The timing was not great, but this is fixing a purported defect in an
> > older
> > v16 feature. If the MAINTAIN privilege is actually fine, we're all
> > set for
> > v16. If MAINTAIN does have a material problem that $SUBJECT had
> > fixed, we
> > should either revert MAINTAIN, un-revert $SUBJECT, or fix the problem
> > a
> > different way.
>
> Someone with the MAINTAIN privilege on a table can use search_path
> tricks against the table owner, if the code is susceptible, because
> maintenance code runs with the privileges of the table owner.
>
>
Only change the search_path if someone other than the table owner or
superuser is running the command (which should only be possible via the new
MAINTAIN privilege)?

David J.