TI-2026-40523 Aliases CVE-2026-56147 GHSA-83mc-f7wh-6hxj

Authorization bypass in Elastic Kibana

LOW 31CWE-639Published 2026-07-21 · Updated 2026-07-22

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-639.

Summary

Authorization Bypass Through User-Controlled Key (CWE-639) in Kibana can lead to unauthorized information disclosure and case attachment integrity compromise via Privilege Abuse (CAPEC-122). An inconsistency in Kibana's file access authorization logic allows a low-privileged authenticated user to retrieve, modify, and delete case attachments that belong to feature areas they are not authorized to access. Because the access control check and the resource retrieval use different resolution mechanisms, an authenticated attacker with limited file management permissions can obtain the contents of, modify, or delete protected case attachments — such as those associated with Security Solution cases — without holding the privileges required to access those features.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00348 28th 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	9.0.0 – 9.3.6; 9.4.0 – 9.4.2; 8.7.0 – 8.19.17	—	No fix listed	CNA

Kibana VendorElastic Affected 9.0.0 – 9.3.6; 9.4.0 – 9.4.2; 8.7.0 – 8.19.17 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:elastic:kibana::::::::	8.19.0 to before 8.19.18; 9.3.0 to before 9.3.7; 9.4.0 to before 9.4.3	Vulnerable	Elastic

cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:* Versions 8.19.0 to before 8.19.18; 9.3.0 to before 9.3.7; 9.4.0 to before 9.4.3 Vulnerable ·Elastic

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-56147
2026-10-03 Alias added: GHSA-83mc-f7wh-6hxj

References

Advisory 1

https://discuss.elastic.co/t/kibana-8-19-18-9-3-7-9-4-3-security-update-esa-2026-59/388558

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