Medium severity6.5NVD Advisory· Published Oct 28, 2026

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.

Affected products

Grafana/Grafanallm-fuzzy

Patches

Vulnerability mechanics

References

grafana.com/security/security-advisories/cve-2026-88858nvd

News mentions

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cvss	0.423
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000