CVE-2026-49089
mediumpriority · track · 0EPSS 0.005 · 41 %ileDEEUUSEPSS · scored 2026-10-27
Allocation of Resources Without Limits or Throttling (CWE-770) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). A query expression accepted by a connector reporting operation was processed without any limit on its size, and an oversized expression caused the Kibana process to spend an unbounded amount of time evaluating it. An authenticated user with read-only privileges was able to send a single request that left Kibana unable to serve any user until the process was restarted.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (14)
Products and version ranges known to be affected.
advisories (3)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-2179Kibana: Mehrere SchwachstellenDeutsch2026-07-01csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in Kibana ausnutzen, um einen Denial of Service Angriff durchzuführen, beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen und vertrauliche Informationen offenzulegen.
- BIT-elk-2026-49089Allocation of Resources Without Limits or Throttling in Kibana Leading to Denial of Service2026-08-19vendor · osvUS
Allocation of Resources Without Limits or Throttling (CWE-770) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). A query expression accepted by a connector reporting operation was processed without any limit on its size, and an oversized expression caused the Kibana process to spend an unbounded amount of time evaluating it. An authenticated user with read-only privileges was able to send a single request that left Kibana unable to serve any user until the process was restarted.
- BIT-kibana-2026-49089Allocation of Resources Without Limits or Throttling in Kibana Leading to Denial of Service2026-08-19vendor · osvUS
Allocation of Resources Without Limits or Throttling (CWE-770) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). A query expression accepted by a connector reporting operation was processed without any limit on its size, and an oversized expression caused the Kibana process to spend an unbounded amount of time evaluating it. An authenticated user with read-only privileges was able to send a single request that left Kibana unable to serve any user until the process was restarted.
also known as (5)
Other names and identifiers for this entity.
- CNNVD-2026-46554172cnnvd
- EUVD-2026-58244enisa_euvd
- GHSA-qp79-577v-7mj4enisa_euvd
- BIT-elk-2026-49089osv
- BIT-kibana-2026-49089osv
sources
Which sources assert this record, and when.
references (4)
External citations — patches, advisories, analysis.
- https://discuss.elastic.co/t/kibana-8-19-20-9-4-5-security-update-esa-2026-137/389511cnnvd
- https://www.elastic.co/downloads/kibanaPatchcnnvd
- https://discuss.elastic.co/t/kibana-8-19-20-9-4-5-security-update-esa-2026-137/389511enisa_euvd
- https://discuss.elastic.co/t/kibana-8-19-20-9-4-5-security-update-esa-2026-137/389511Vendor Advisorynvd
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