Is CVE-2026-88858 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-88858?

CVE-2026-88858 has a CVSS v3 severity of MEDIUM (6.5).

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CVE-2026-88858

Description

A user with the Viewer role in Grafana can crash the server by submitting a crafted server-side math expression (uncontrolled recursion). A user with permission to provision alert rules can make the outage persist across restarts.