TI-2026-36322 Aliases CVE-2026-49096 GHSA-448j-qxg7-vqm3

Uncaught Exception in Kibana Cases Leading to Denial of Service

LOW 20CWE-248Published 2026-08-13 · Updated 2026-08-13

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-248.

Summary

Uncaught Exception (CWE-248) in Kibana Cases can lead to denial of service via Input Data Manipulation (CAPEC-153). Malformed link syntax stored in a case comment was not rejected or sanitized when the comment was later formatted for display, and the resulting unhandled error prevented the affected case from being displayed. An authenticated user holding privileges to comment on a case could store such a comment, after which that case became inaccessible to every user who opened it until the stored comment was removed.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00288 21st 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 – 8.19.19; 9.0.0 – 9.3.4; 9.4.0; 9.4.1	—	No fix listed	CNA

Kibana VendorElastic Affected 8.0.0 – 8.19.19; 9.0.0 – 9.3.4; 9.4.0; 9.4.1 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 8.19.20; 9.0.0 to before 9.3.5; 9.4.0 to before 9.4.2	Vulnerable	Elastic

cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:* Versions 8.0.0 to before 8.19.20; 9.0.0 to before 9.3.5; 9.4.0 to before 9.4.2 Vulnerable ·Elastic

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-49096
2026-10-03 Alias added: GHSA-448j-qxg7-vqm3

References

Advisory 1

https://discuss.elastic.co/t/kibana-8-19-20-9-3-5-9-4-2-security-update-esa-2026-136/389492

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