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Grafana has released critical and high severity security patches for CVE-2026-27876 and CVE-2026-27880 across multiple versions.
•CVE-2026-27876 (CVSS 9.1 CRITICAL): Grafana's SQL expressions feature allowed arbitrary file writes to the filesystem, enabling remote code execution via chained attack vectors including SSH access to the Grafana host.
•The SQL expression vulnerability requires Viewer-level permissions or higher and the sqlExpressions feature toggle to be enabled.
•Workarounds include disabling the sqlExpressions feature toggle, updating Sqlyze to v1.5.0+, and disabling AWS data sources.
•CVE-2026-27880 (CVSS 7.5 HIGH): Unauthenticated denial-of-service via OpenFeature endpoints that accept unbounded input, exhausting server memory.
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Affected versions: CVE-2026-27876 impacts v11.6.0+; CVE-2026-27880 impacts v12.1.0+. Patched releases include 12.4.2, 12.3.6, 12.2.8, 12.1.10, and 11.6.14.
This summary was automatically generated by AI based on the original article and may not be fully accurate.
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