CVE-2026-72663

Inefficient Algorithmic Complexity in Kibana Leading to Denial of Service

MEDIUM
6.5
CVSS Score
Published: August 13, 2026 at 07:13 PM UTC
Updated: October 24, 2026 at 03:10 PM UTC
1 product affected across 1 vendorKibana

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

Inefficient Algorithmic Complexity (CWE-407) in Kibana can lead to denial of service via Input Data Manipulation (CAPEC-153). A specially crafted, deeply nested expression submitted to a Kibana TSVB visualization is evaluated with a worst-case cost that grows disproportionately with the size of the input. Because the evaluation runs synchronously, a single request consumes the Kibana request-processing thread indefinitely, and Kibana stops responding to all further requests until the service is restarted.

Affected

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

8.0.0 ≤ v < 8.19.209.0.0 ≤ v < 9.4.58.0.09.0.0
Affected range stops below 8.19.20, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.4.5, 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

6.5MEDIUMelastic
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-407

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