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TI-2026-68573 Aliases CVE-2026-102404GHSA-9h6g-vjpq-vfvx

Uncontrolled resource use in Elasticsearch allows denial of service

Priority LOW 29CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Deferred Red Hat: fix deferred

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-400.

Summary

Elastic Elasticsearch versions 8.0.0 through 8.19.22, 9.0.0 through 9.4.7, and 9.5.0 through 9.5.4 are affected. A flaw (CWE-400) lets the query processing engine grow memory without limit. A low-privileged authenticated user can submit a crafted query that causes an out-of-memory condition and terminates the node, and repeated queries, including ones embedded in shared resources, keep the cluster unavailable.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130). A low-privileged authenticated user can submit a specially crafted query that causes uncontrolled memory growth in the query processing engine, resulting in an out-of-memory condition that terminates the Elasticsearch node. The condition can be triggered repeatedly, including by queries embedded in shared resources, causing persistent cluster unavailability.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00309 23rd percentileScored 2026-11-07
Fix Deferred Red Hat: fix deferred

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ElasticElasticsearch8.0.0 – 8.19.22; 9.0.0 – 9.4.7; 9.5.0 – 9.5.4—No fix listedCNA
  • Elasticsearch VendorElastic Affected 8.0.0 – 8.19.22; 9.0.0 – 9.4.7; 9.5.0 – 9.5.4 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*8.0.0 to before 8.19.23; 9.0.0 to before 9.4.8; 9.5.0 to before 9.5.5VulnerableElastic
  • cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:* Versions 8.0.0 to before 8.19.23; 9.0.0 to before 9.4.8; 9.5.0 to before 9.5.5 Vulnerable ·Elastic

Remediation

The sources list no fixed version for Elasticsearch. Red Hat lists Red Hat OpenShift AI (RHOAI) as affected, with no fix plan available.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat OpenShift AI (RHOAI)AffectedNo fix yet: Fix deferred
Not affected: 1 product
  • Red Hat Quay 3

Timeline

  1. 2026-10-06 Threatist record created from CVE-2026-102404
  2. 2026-10-07 CISA SSVC decision points changed
  3. 2026-10-07 Priority changed: MEDIUM → LOW
  4. 2026-10-07 Alias added: GHSA-9h6g-vjpq-vfvx
  5. 2026-10-07 Affected versions changed · Red Hat
  6. 2026-10-07 CVSS score added · Red Hat
  7. 2026-10-08 Affected versions changed · Red Hat

References

Advisory 1

  • TI-2015-01295 The Groovy scripting engine in Elasticsearch before 1.3.8 and 1.4.x before 1.4.3 allows… KEVCVSS 3.1CRITICAL 9.8
  • TI-2014-02491 The default configuration in Elasticsearch before 1.2 enables dynamic scripting, which… KEVCVSS 3.1HIGH 8.1
  • TI-2023-15037 Elasticsearch StackOverflow vulnerability CVSS 3.1HIGH 7.5
  • TI-2021-05135 Information disclosure in Elasticsearch CVSS 3.1MEDIUM 6.5
  • TI-2021-05136 All versions of Elastic Cloud Enterprise has the Elasticsearch “anonymous” user enabled… CVSS 3.1HIGH 7.5
  • TI-2015-04530 Elasticsearch before 1.6.1 allows remote attackers to execute arbitrary code via… CVSS 3.0CRITICAL 9.8
See all 90 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences