CVE-2026-88891 OpenPanel through 2.3.0 Read-Only Access Level Enforcement Bypass via Mutations
Read-only users can bypass access controls to modify, delete, or publish project data due to missing validation in mutation resolvers.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-88891?
CVE-2026-88891 is a high-severity missing authorization vulnerability in Openpanel-dev openpanel, published on 10 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
OpenPanel through 2.3.0 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.
Weakness: CWE-269
Which versions are affected by CVE-2026-88891?
How do I fix CVE-2026-88891?
No fix has been published for CVE-2026-88891 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-88891 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-88891 exists.
Sources
Also known as GHSA-f9rx-pxgw-c6rg, GHSA-hpwh-25jq-4wxm.