CVE-2026-86195 grav-plugin-api 1.0.0 through 1.0.19 Privilege Escalation via Dot-Keyed Super Flag
A non-super user can escalate to super-admin by injecting dot-keyed flags into invitations, gaining full site control via JWT.
- 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-2026-86195?
CVE-2026-86195 is a high-severity vulnerability in getgrav grav-plugin-api, published on 5 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
grav-plugin-api versions before 1.0.20 contain a privilege escalation vulnerability in the InvitationsController where the stripSuperFlags() method only removes nested super flags but fails to strip dot-keyed equivalents like api.super. A non-super user manager with api.access and api.users.write permissions can create an invitation with a dot-keyed super flag in the access payload that bypasses the guard and persists to the new account. Attackers can accept the invitation through the public endpoint without real invitee interaction to create a super-admin account and immediately receive a valid JWT for full site control.
Weakness: CWE-269
Which versions are affected by CVE-2026-86195?
How do I fix CVE-2026-86195?
No fix has been published for CVE-2026-86195 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-86195 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-86195 exists.
Sources
Also known as GHSA-rg66-gwrp-wj75.