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Upgrade Grafana 12.3.3 → 12.4.2

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Patches 7 CVEs including CVE-2026-27880 (unauthenticated OOM DoS, CVSS 7.5).
No config changes needed — alerting pending period behavior change is a net
improvement for our NoData/Error rules.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Erich Blume 2026-04-02 11:21:26 -07:00
commit 4c547745bf
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Upgrade Grafana from 12.3.3 to 12.4.2 — patches 7 CVEs including an unauthenticated DoS (CVE-2026-27880).