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VulnerabilityPublished Updated

CVE-2026-82300: Elastic Elasticsearch · Uncontrolled Resource Consumption

Affects Elastic ElasticsearchSource CVE Database V5

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Not known to be exploited · CVSS 6.5 Medium.

Data as of 10 Nov 2026, 23:24 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 15% 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 26 Sep 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 10 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
ElasticElasticsearchAffected
  • >=8.0.0 <=8.19.21
  • >=9.0.0 <=9.4.6
  • >=9.5.0 <=9.5.3
Fixed in–
Mavenorg.elasticsearch/elasticsearchpkg:maven/org.elasticsearch/elasticsearchOther threatsAffected
  • >=8.0.0 <=8.19.21
  • >=9.0.0 <=9.4.7
  • >=9.5.0 <=9.5.3
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Until a fix is available, monitor resource usage and consider limiting access to trusted users to reduce risk.

Description

CVE-2026-82300 is a medium severity vulnerability in Elastic Elasticsearch involving uncontrolled resource consumption (CWE-400). This flaw can lead to denial of service (DoS) through excessive allocation of resources. The vulnerability affects multiple Elasticsearch versions from 8.0.0 through 9.5.3 in various ranges. No known exploits are reported in the wild, and no explicit patch information is provided in the source data.

References

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