Bug 2499062 (CVE-2026-33382)

Summary: CVE-2026-33382 grafana: Grafana: Denial of Service via excessive memory allocation from large API request payloads
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: amctagga, aoconnor, bniver, flucifre, gmeno, gparvin, groman, lchilton, mbenjamin, mhackett, rhaigner, rhel-process-autobot, sfeifer, sostapov, vereddy, watson-tool-maintainers
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Doc Text:
A flaw in Grafana's API endpoints allows remote attackers to send excessively large request bodies without authentication. This exhausts server memory, resulting in a complete denial of service (DoS).
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2501328    
Bug Blocks:    

Description OSIDB Bzimport 2026-07-10 16:02:15 UTC
Several Grafana API endpoints, some of them unauthenticated, do not limit the size of the request body before processing it. An attacker can send very large payloads that force excessive memory allocation, potentially exhausting memory and causing a denial of service.