CVE-2026-49087Network attack vector

Authenticated service interruption via bulk deletion

Published Jul 1, 2026 · Updated Jul 1, 2026

Resource exhaustion in Elastic Kibana 8.0.0 through 8.19.14 and 9.0.0 through 9.3.3 allows remote authenticated users to interrupt service. Bulk deletion processing accepts a specially crafted request without resource limits or throttling, causing excessive allocation and resource consumption. Any authenticated Kibana account can reach the network request path; successful exploitation can render the interface unavailable.

CVSS severity6.5
Medium
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource exhaustion in Elastic Kibana 8.0.0 through 8.19.14 and 9.0.0 through 9.3.3 allows remote authenticated users to interrupt service. Bulk deletion processing accepts a specially crafted request without resource limits or throttling, causing excessive allocation and resource consumption. Any authenticated Kibana account can reach the network request path; successful exploitation can render the interface unavailable.

The record

CVE
CVE-2026-49087
Published
Jul 1, 2026
Updated
Jul 1, 2026
Vendor
Elastic
Product
Kibana
Classifications
CWE-770, CAPEC-130, T1499
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 1, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 1, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=8.0.0 <=8.19.14
  2. Affected versionversion=9.0.0 <=9.3.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Elastic · Kibanaversion=8.0.0 <=8.19.14; version=9.0.0 <=9.3.3

Published CVSS scores

6.5ElasticCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
CAPEC-130Excessive Allocation
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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