Elk: Allocation of Resources Without Limits or Throttling in Kibana Leading to Denial of Service (CVE-2026-72674)
A vulnerability in Kibana allows excessive allocation of resources without limits or throttling, leading to denial of service. The issue arises because a user-supplied list of document fields accepted by the Kibana Playground for the RAG feature is not bounded in length or de-duplicated. This can cause Kibana to build a response much larger than the original data, exhausting system resources. The vulnerability affects Kibana versions 9.3.0 through 9.3.7 and 9.4.0 through 9.4.3. A patch is available to address this issue. No known exploits are reported in the wild. The severity is assessed as medium.
AI Analysis
Technical Summary
CVE-2026-72674 is a resource allocation vulnerability in Kibana where the Playground for the RAG feature accepts a user-supplied list of document fields without bounding its length or removing duplicates. This flaw allows a crafted request to cause Kibana to generate a response significantly larger than the input data, resulting in excessive processing and memory consumption that can exhaust the Kibana instance's resources and cause denial of service. The vulnerability affects Kibana versions >=9.3.0 <9.3.8 and >=9.4.0 <9.4.4. A patch is available to mitigate this issue. There are no reports of active exploitation in the wild.
Potential Impact
An attacker can cause denial of service on a vulnerable Kibana instance by sending a specially crafted request that triggers excessive resource allocation. This leads to high processing and memory usage, potentially exhausting system resources and making the Kibana service unavailable.
Mitigation Recommendations
A patch is available for this vulnerability. Users should upgrade Kibana to versions 9.3.8 or later and 9.4.4 or later to remediate the issue. No additional mitigation steps are indicated by the vendor advisory.
Elk: Allocation of Resources Without Limits or Throttling in Kibana Leading to Denial of Service (CVE-2026-72674)
Description
A vulnerability in Kibana allows excessive allocation of resources without limits or throttling, leading to denial of service. The issue arises because a user-supplied list of document fields accepted by the Kibana Playground for the RAG feature is not bounded in length or de-duplicated. This can cause Kibana to build a response much larger than the original data, exhausting system resources. The vulnerability affects Kibana versions 9.3.0 through 9.3.7 and 9.4.0 through 9.4.3. A patch is available to address this issue. No known exploits are reported in the wild. The severity is assessed as medium.
Affected software
Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-72674 is a resource allocation vulnerability in Kibana where the Playground for the RAG feature accepts a user-supplied list of document fields without bounding its length or removing duplicates. This flaw allows a crafted request to cause Kibana to generate a response significantly larger than the input data, resulting in excessive processing and memory consumption that can exhaust the Kibana instance's resources and cause denial of service. The vulnerability affects Kibana versions >=9.3.0 <9.3.8 and >=9.4.0 <9.4.4. A patch is available to mitigate this issue. There are no reports of active exploitation in the wild.
Potential Impact
An attacker can cause denial of service on a vulnerable Kibana instance by sending a specially crafted request that triggers excessive resource allocation. This leads to high processing and memory usage, potentially exhausting system resources and making the Kibana service unavailable.
Mitigation Recommendations
A patch is available for this vulnerability. Users should upgrade Kibana to versions 9.3.8 or later and 9.4.4 or later to remediate the issue. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- BIT-kibana-2026-72674
- Osv Schema Version
- 1.6.2
- Aliases
- ["CVE-2026-72674"]
- Ecosystems
- ["Bitnami"]
- Database Specific Severity
- Medium
- Cvss Version
- null
Threat ID: 6a85b4aaacd9273b49250edc
Added to database: 08/19/2026, 13:50:34 UTC
Last enriched: 08/19/2026, 14:01:17 UTC
Last updated: 08/19/2026, 16:52:01 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.
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.