Files
pgadmin4/.github
Ashesh Vashi f81433ae2f Fix RCE via unauthenticated session deserialization in SQL Editor close/update routes.
The 'close' (DELETE /sqleditor/close/<trans_id>) and
'update_sqleditor_connection' (POST /sqleditor/initialize/sqleditor/
update_connection/...) endpoints were the only state-mutating SQL Editor
routes missing @pga_login_required. Both reach pickle.loads on
session['gridData'][trans_id]['command_obj'] via
close_sqleditor_session() and check_transaction_status() respectively.

Combined with a forged session file (precondition: SECRET_KEY leak +
write access to sessions/), this gave an unauthenticated attacker a
pickle deserialization sink and arbitrary code execution in the pgAdmin
process. Adding the login decorator forces is_authenticated/MFA checks
before the unsafe deserialization path is reached, matching the
convention used by every other endpoint in the module.

Includes a server-mode regression test that harvests a CSRF token from
GET /login (mirroring the attacker's path) and asserts both endpoints
reject the unauthenticated request before reaching the route body.
Self-skips in DESKTOP mode because pgAdmin's before_request hook
re-authenticates DESKTOP_USER on every request there, so no auth
decorator can be exercised in an unauthenticated state. Wired into the
existing server-mode CI workflow alongside the data-isolation tests.

Reported by Fernando Bortotti <fernando.bortotti@bsd.com.br>.
2026-06-10 20:01:44 +05:30
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