CVE-2026-26936
Inefficient Regular Expression Complexity in Kibana Leading to Denial of Service
7.5
HIGH
CVSS 3.1
EPSS 0.08%
Description
Inefficient Regular Expression Complexity (CWE-1333) in the AI Inference Anonymization Engine in Kibana can lead Denial of Service via Regular Expression Exponential Blowup (CAPEC-492).
How to fix CVE-2026-26936
To remediate CVE-2026-26936, upgrade the affected package to a fixed version below.
- Bitnami/elk—upgrade to 8.19.11 or later
- —upgrade to 8.19.11 or later
Is CVE-2026-26936 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- >= 8.0.0, < 8.19.11, >= 9.0.0, < 9.2.5
- >= 8.0.0, < 8.19.11, >= 9.0.0, < 9.2.5
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |