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CVE CVE-2026-26940

CVE-2026-26940

Express

Severity: MEDIUM
CVSS: 6.5CVSS
Published: 2026-03-19
Last modified: 2026-03-23
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE: CWE-1284

Description

Improper Validation of Specified Quantity in Input (CWE-1284) in the Timelion visualization plugin in Kibana can lead Denial of Service via Excessive Allocation (CAPEC-130). The vulnerability allows an authenticated user to send a specially crafted Timelion expression that overwrites internal series data properties with an excessively large quantity value.

References

https://discuss.elastic.co/t/kibana-8-19-13-9-2-7-9-3-2-security-update-esa-2026-20/385535

Summary

Description

References