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VulnerabilityPublished

CVE-2026-33464: Elastic Kibana · Uncontrolled Resource Consumption

Affects Elastic KibanaSource CVE Database V5

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Not known to be exploited · CVSS 6.5 Medium.

Data as of 30 Oct 2026, 06:59 UTC

CVSS 3.1 base score
6.5Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 19% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 28 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
ElasticKibanaAffected
  • >=9.4.0 <=9.4.0
  • >=9.0.0 <=9.3.4
  • >=8.0.0 <=8.19.15
Fixed in–

AI-suggested

Until a patch is available, consider restricting access to Kibana APIs to trusted users and monitoring for unusual payload sizes or resource usage patterns if feasible.

Description

CVE-2026-33464 is a medium severity vulnerability in Elastic Kibana affecting versions 8.0.0, 9.0.0, and 9.4.0. It involves uncontrolled resource consumption (CWE-400) where an authenticated user with low privileges can send an oversized payload to an internal API. This causes the Kibana process to exhaust system resources, leading to denial of service by making the service unresponsive until recovery or restart. There is no confirmed patch or official remediation available at this time.

References

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