CVE-2026-42397: CWE-770 Allocation of Resources Without Limits or Throttling in Elastic Kibana
Allocation of Resources Without Limits or Throttling (CWE-770) in Kibana can lead to a denial of service via Excessive Allocation (CAPEC-130). An authenticated user can submit a specially crafted request to affected Entity Analytics endpoints containing an oversized input value that causes excessive resource consumption, which may render Kibana unavailable.
AI Analysis
Technical Summary
This vulnerability (CWE-770) in Elastic Kibana allows an authenticated user to cause excessive resource consumption by submitting oversized input values to certain Entity Analytics endpoints. This lack of resource allocation limits or throttling can result in denial of service conditions, rendering the Kibana service unavailable. The affected versions are exactly 9.3.0 and 9.4.0. No vendor advisory or patch information is currently available, and no known exploits are reported in the wild.
Potential Impact
The impact is a denial of service (availability) caused by excessive resource consumption triggered by oversized input values. There is no impact on confidentiality or integrity. The service may become unavailable to legitimate users during exploitation.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, consider restricting access to Entity Analytics endpoints to trusted users only and monitor for unusual resource usage patterns related to oversized inputs.
CVE-2026-42397: CWE-770 Allocation of Resources Without Limits or Throttling in Elastic Kibana
Description
Allocation of Resources Without Limits or Throttling (CWE-770) in Kibana can lead to a denial of service via Excessive Allocation (CAPEC-130). An authenticated user can submit a specially crafted request to affected Entity Analytics endpoints containing an oversized input value that causes excessive resource consumption, which may render Kibana unavailable.
CVSS v3.1
Score 6.5medium
Affected software
Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-770) in Elastic Kibana allows an authenticated user to cause excessive resource consumption by submitting oversized input values to certain Entity Analytics endpoints. This lack of resource allocation limits or throttling can result in denial of service conditions, rendering the Kibana service unavailable. The affected versions are exactly 9.3.0 and 9.4.0. No vendor advisory or patch information is currently available, and no known exploits are reported in the wild.
Potential Impact
The impact is a denial of service (availability) caused by excessive resource consumption triggered by oversized input values. There is no impact on confidentiality or integrity. The service may become unavailable to legitimate users during exploitation.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, consider restricting access to Entity Analytics endpoints to trusted users only and monitor for unusual resource usage patterns related to oversized inputs.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- elastic
- Date Reserved
- 2026-04-27T10:14:34.318Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a5fd4a31010f89cc2249467
Added to database: 07/21/2026, 20:20:51 UTC
Last enriched: 07/21/2026, 20:37:13 UTC
Last updated: 07/21/2026, 21:08:37 UTC
Views: 2
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.