CVE-2026-107509 · Infrastructure
NO FIX YET
A user with only the Viewer role can send one SQL Expression query that casts a value to a very large BINARY length, making Grafana allocate unbounded memory. The server crashes as a result.
first public Nov 11, 2026 · 1 source
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Teams running a self-hosted or managed Grafana instance where users hold the Viewer role and SQL Expressions are available. Instances where only trusted administrators can log in are less exposed. The sources do not name the fixed version.
Not affected if no-viewer-users, sql-expressions-disabled
Who cares grafana, self-hosted, viewer-role
grafana server -v or the About page in the UI.No fix yet, per the sources.
A user with the Viewer role can make Grafana allocate an unbounded amount of memory, and crash it, with a single SQL Expression query that casts a value to a very large BINARY length (memory allocation with excessive size value).
This page as .md · .json · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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