CVE-2026-88891: OpenPanel Read-Only Access Level Enforcement Bypass via Mutations
OpenPanel fails to enforce read-only project access level on 26 of 29 mutating procedures, allowing read-level members to modify, delete, and publish project data. Attackers with explicit read-only access can delete reports and dashboards, schedule entire projects for deletion, publish private analytics to public share links, and modify alerting rules by exploiting missing access level validation in mutation resolvers.
Affected Software
Event History
Frequently Asked Questions
What level of access does an attacker need to exploit this issue?
The attacker needs explicit read-only access to an OpenPanel project. No user interaction is required.
What actions could a read-only project member perform?
They may be able to modify, delete, or publish project data through mutation procedures that lack access-level validation. Reported impacts include deleting reports and dashboards, scheduling projects for deletion, exposing private analytics through public share links, and changing alerting rules.