CVE-2026-55485: Piccolo-Orm Piccolo Admin

High severity, CVSS 8.8. EPSS: 0.6% chance of exploitation in the next 30 days.

Piccolo Admin is an admin interface and content management system for Python, built on top of Piccolo. Prior to 1.14.0, piccolo_admin/endpoints.py uses superuser_validators to block PUT, PATCH, DELETE, and POST requests by non-superusers but permits GET requests to configured user and session tables, while piccolo_api/session_auth/tables.py exposes SessionsBase.token because the token column is not secret. In deployments that add the Sessions and User tables to create_admin, a non-superuser administrator can call GET /api/tables/sessions/, obtain another user's live session token, replay it as the Cookie id value to impersonate a superuser, and permanently set superuser to true on the attacker's own row. This issue is fixed in version 1.14.0.

Affected products

• Piccolo-Orm Piccolo Admin: before 1.14.0 (fixed in 1.14.0)

Published 2026-08-28. Last modified 2026-09-09.