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VulnerabilityPublished

CVE-2026-115715: Elastic Elasticsearch · Unthrottled Resource Allocation

Affects Elastic ElasticsearchSource CVE Database V5

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Not known to be exploited · CVSS 6.5 Medium.

Data as of 3 Nov 2026, 17:58 UTC

CVSS 3.1 base score
6.5Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (elastic)CVSS 3.16.5
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 3 Nov 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 3 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
ElasticElasticsearchAffected
  • >=8.0.0 <=8.19.23
  • >=9.0.0 <=9.4.8
  • >=9.5.0 <=9.5.5
Fixed in–

AI-suggested

Until a fix is available, restrict permissions to trusted users only and monitor usage of the analysis-phonetic plugin. Consider disabling or avoiding use of the affected phonetic encoders if possible.

Description

Allocation of Resources Without Limits or Throttling (CWE-770) in Elasticsearch can lead to denial of service via a specially crafted input value that is processed by an affected phonetic encoder of the analysis-phonetic plugin. An authenticated user with permission to write documents to or run searches against an index that uses an affected encoder can cause an Elasticsearch node to exhaust its heap memory. The node can become unresponsive or terminate.

References

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