Bug 2452295 (CVE-2026-27880)

Summary: CVE-2026-27880 Grafana: Grafana: Denial of Service via unbounded memory read in feature toggle evaluation
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: lchilton, sfeifer
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Grafana. A remote attacker can exploit the feature toggle evaluation endpoint by sending unbounded values, causing the system to read excessive data into memory. This can lead to out-of-memory crashes, resulting in a Denial of Service (DoS) for the affected service.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On: 2452528    
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Description OSIDB Bzimport 2026-03-27 15:04:06 UTC
The OpenFeature feature toggle evaluation endpoint reads unbounded values into memory, which can cause out-of-memory crashes.