CVE-2026-33463: Elastic Kibana

Medium severity, CVSS 5.3. EPSS: 0.4% chance of exploitation in the next 30 days.

Operation on a Resource after Expiration or Termination (CWE-672) in Kibana can lead to unauthorized information disclosure. A logic error in how expiration timestamps were validated allowed a time-bounded access token to remain usable beyond its intended validity window, enabling an unauthenticated actor in possession of the token to retrieve the associated content after expiration.

Affected products

• Elastic Kibana: from 8.0.0, before 8.19.16 (fixed in 8.19.16); from 9.0.0, before 9.3.5 (fixed in 9.3.5)

Published 2026-05-28. Last modified 2026-06-17.