CVE-2026-75897
Improper input validation in the capabilities route handler in OpenSearch Dashboards - the size of the request payload is not bounded - might allow remote attackers to cause a denial of service via a crafted HTTP request.
CSIRTS triage
- What
- OpenSearch Dashboards contains improper input validation in the capabilities route handler allowing unbounded resource consumption.
- Who is affected
- OpenSearch Dashboards self-managed deployments and Amazon OpenSearch Service instances running versions 1.3.0 through 3.7.0 or Kibana 7.7.1 through 7.10.2.
- Urgency
- Important; denial of service vulnerability enabling remote attackers to consume server resources via crafted requests.
- Action
- Upgrade OpenSearch Dashboards to version 3.8.0 or later, or upgrade Kibana to 7.10.3 or later.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.50% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 41% of all EPSS-scored CVEs.
Advisory coverage (2)
External references
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