Bug 2429392 (CVE-2026-0531)

Summary: CVE-2026-0531 kibana: allocation of resources without limits or throttling via specially crafted bulk retrieval request
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: jcantril, rojacob
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Kibana. An attacker with low-level privileges equivalent to the viewer role, can exploit this vulnerability by sending a specially crafted bulk retrieval request. This request can trigger redundant database operations, causing the application to consume excessive memory, eventually resulting in a denial of service.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-01-13 22:01:10 UTC
Allocation of Resources Without Limits or Throttling (CWE-770) in Kibana Fleet can lead to Excessive Allocation (CAPEC-130) via a specially crafted bulk retrieval request. This requires an attacker to have low-level privileges equivalent to the viewer role, which grants read access to agent policies. The crafted request can cause the application to perform redundant database retrieval operations that immediately consume memory until the server crashes and becomes unavailable to all users.