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help / color / mirror / Atom feedFrom: Noah Misch <noah@leadboat.com>
To: pgsql-committers@lists.postgresql.org
Subject: pgsql: Invalidate plan cache after role changes.
Date: Mon, 10 Aug 2026 13:41:29 +0000
Message-ID: <E1wtQFt-00000000yHM-3e9y@gemulon.postgresql.org> (raw)
Invalidate plan cache after role changes.
Role membership, role attribute, and database ownership changes may
impact the expected behavior of row-level security policies, but
currently the plan cache doesn't take notice. To fix, register
syscache callbacks on pg_auth_members, pg_authid, and pg_database
that invalidate the role-dependent plans. Changes to other
databases' pg_database rows are ignored.
Reported-by: Ilya Staroverov <i.staroverov@ftdata.ru>
Reported-by: Shinya Kato <shinya11.kato@gmail.com>
Author: Ilya Staroverov <i.staroverov@ftdata.ru>
Author: Shinya Kato <shinya11.kato@gmail.com>
Co-authored-by: Nathan Bossart <nathandbossart@gmail.com>
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Security: CVE-2026-14666
Backpatch-through: 14
Branch
------
REL_16_STABLE
Details
-------
https://git.postgresql.org/pg/commitdiff/f5f2da795b395449ca2970330bbdc88f8366bf68
Author: Nathan Bossart <nathan@postgresql.org>
Modified Files
--------------
src/backend/utils/adt/acl.c | 2 +-
src/backend/utils/cache/plancache.c | 60 ++++++++++++++++++++++++++++++++++++-
src/include/utils/acl.h | 3 ++
3 files changed, 63 insertions(+), 2 deletions(-)
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To: pgsql-committers@postgresql.org
Cc: noah@leadboat.com, pgsql-committers@lists.postgresql.org
Subject: Re: pgsql: Invalidate plan cache after role changes.
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