CVE-2026-49096

Uncaught Exception in Kibana Cases Leading to Denial of Service

LOW
3.5
CVSS Score
Published: August 13, 2026 at 07:14 PM UTC
Updated: September 2, 2026 at 07:02 PM UTC
1 product affected across 1 vendorKibana

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Severity
LOW3.5
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

8.0.0 ≤ v ≤ 8.19.198.0.0 ≤ v < 8.19.209.0.0 ≤ v ≤ 9.3.49.0.0 ≤ v < 9.3.59.4.0 ≤ v < 9.4.28.0.09.0.09.4.09.4.1
Affected range stops below 8.19.20, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.3.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.4.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW
Vector?

Quick Info

StatusANALYZED
CWE
CWE-248

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