Reachable Assertion Affecting kibana package, versions >=8.0.0 <8.19.19>=9.0.0 <9.3.8>=9.4.0 <9.4.4


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.24% (15th percentile)

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  • Snyk IDSNYK-JS-KIBANA-18313032
  • published26 Jul 2026
  • disclosed22 Jul 2026
  • creditUnknown

Introduced: 22 Jul 2026

NewCVE-2026-63140  (opens in a new tab)
CWE-617  (opens in a new tab)

How to fix?

Upgrade kibana to version 8.19.19, 9.3.8, 9.4.4 or higher.

Overview

kibana is an open source (Apache Licensed), browser-based analytics and search dashboard for Elasticsearch.

Affected versions of this package are vulnerable to Reachable Assertion via the query parsing. An attacker can cause the affected node to terminate by sending a specially crafted search request containing a null value in a specific query clause.

Note: This is only exploitable if the attacker is a low-privileged authenticated user with read access to at least one index.

References

CVSS Base Scores

version 4.0
version 3.1