Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Elastic | Kibana | >= 8.0.0, < 8.19.20 |
Related Weaknesses (CWE)
References
- https://discuss.elastic.co/t/kibana-8-19-20-and-9-4-5-security-update-esa-2026-1MitigationVendor Advisory
FAQ
What is CVE-2026-72663?
CVE-2026-72663 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 v...
How severe is CVE-2026-72663?
CVE-2026-72663 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-72663?
Check the references section above for vendor advisories and patch information. Affected products include: Elastic Kibana.