CVE-2026-33378 - Grafana Data Source Plugin: DoS (OOM) via Negative Interval Injection in $__timeGroup Macro

CVE-2026-33378 - Grafana Data Source Plugin: DoS (OOM) via Negative Interval Injection in $__timeGroup Macro

https://cvefeed.io/rssfeed/latest.atom / Wed, 05/13/2026 - 23:23
CVE ID :CVE-2026-33378
Published : May 13, 2026, 8:16 p.m. | 51 minutes ago
Description :Using the $__timeGroup macro, one can achieve an OOM by overloading the server. This requires a SQL datasource. If the server is set up to auto-restart, the impact is minimal or non-existent, as the attack can take upwards of half an hour to crash the server.
Severity: 6.5 | MEDIUM
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Kenya Education Network CERT(KENET-CERT) is a Cybersecurity Emergency Response Team and Co-ordination Center operated by the National Research and Education Network of Kenya. KENET-CERT coordination center promotes awareness on cybersecurity incidences as well as coordinates and assists member institutions in responding effectively to cyber security threats and incidences. KENET-CERT works closely with Kenya's National CIRT coordination center (CIRT/CC) as a sector CIRT for the academic institutions. KENET promotes use of ICT in Teaching, Learning and Research in Higher Education Institutions in Kenya. KENET aims to interconnect all the Universities, Tertiary and Research Institutions in Kenya by setting up a cost effective and sustainable private network with high speed access to the global Internet. KENET also facilitates electronic communication among students and faculties in member institutions, share learning and teaching resources by collaboration in Research and Development of Educational content.