TI-2026-54647 Aliases CVE-2026-78598 GHSA-x87p-86f2-9mg9

Incorrect Authorization in Kibana Leading to Unauthorized Cross-Space Exposure of Machine Learning Job Data

LOW 24CWE-863Published 2026-09-02 · Updated 2026-09-02

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: Low · Low · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-863.

Summary

Incorrect Authorization (CWE-863) in the Kibana machine learning feature can lead to information disclosure via Exploiting Incorrectly Configured Access Control Security Levels (CAPEC-180). An authenticated user holding machine learning job management privileges within a single Kibana space could cause a job's saved object to become accessible across all spaces in the Kibana instance, without holding access rights to those additional spaces.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00238 14th 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

Vendor	Product	Affected versions	Fixed in	Status	Source
Elastic	Kibana	8.0.0 – 8.19.18; 9.0.0 – 9.3.7; 9.4.0 – 9.4.3	—	No fix listed	CNA

Kibana VendorElastic Affected 8.0.0 – 8.19.18; 9.0.0 – 9.3.7; 9.4.0 – 9.4.3 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:elastic:kibana::::::::	8.0.0 to before 8.19.19; 9.0.0 to before 9.3.8; 9.4.0 to before 9.4.4	Vulnerable	Elastic

cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:* Versions 8.0.0 to before 8.19.19; 9.0.0 to before 9.3.8; 9.4.0 to before 9.4.4 Vulnerable ·Elastic

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-78598
2026-10-03 Alias added: GHSA-x87p-86f2-9mg9

References

Advisory 1

https://discuss.elastic.co/t/kibana-8-19-19-9-3-8-9-4-4-security-update-esa-2026-156/390111

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