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TI-2026-30698 Aliases CVE-2026-42399GHSA-hcw2-vpp7-52v9

Uncontrolled Resource Consumption in Kibana Leading to 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
No fix listed

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

Summary

Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). An authenticated low-privileged user can cause Kibana to consume exponentially increasing amounts of memory by submitting a specially crafted Timelion visualization expression containing deeply chained function calls. The resulting data structure grows without bound, exhausting available memory and causing the Kibana service to crash and become unavailable to all users.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00332 26th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

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
ElasticKibana8.0.0 – 8.19.15; 9.0.0 – 9.3.4—No fix listedCNA
  • Kibana VendorElastic Affected 8.0.0 – 8.19.15; 9.0.0 – 9.3.4 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*8.0.0 to before 8.19.16; 9.0.0 to before 9.3.5VulnerableElastic
  • cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:* Versions 8.0.0 to before 8.19.16; 9.0.0 to before 9.3.5 Vulnerable ·Elastic

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-42399
  2. 2026-10-03 Alias added: GHSA-hcw2-vpp7-52v9

References

Advisory 1

  • TI-2019-05363 Code injection in Elastic Kibana KEVCVSS 3.1CRITICAL 10.0
  • TI-2018-12328 Kibana versions before 6.4.3 and 5.6.13 contain an arbitrary file inclusion flaw in the… CVSS 3.0CRITICAL 9.8
  • TI-2025-18692 Kibana arbitrary code execution via prototype pollution CVSS 3.1CRITICAL 9.8
  • TI-2020-05660 Code injection in Elastic Kibana CVSS 3.1HIGH 8.8
  • TI-2024-24803 Deserialization of untrusted data in Elastic Kibana CVSS 3.1CRITICAL 9.9
  • TI-2024-24800 Kibana arbitrary code execution via YAML deserialization CVSS 3.1CRITICAL 9.1
See all 188 →

Sources

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