CVE-2026-33463 MEDIUM

CVE-2026-33463: Operation on a Resource after Expiration or Termination in Kibana Leading to Unauthorized File Access

Vendor Elastic
Product Kibana
Weakness CWE-672
Published May 28, 2026
Last update May 29, 2026

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

May 28, 2026 CVE published
May 29, 2026 Record updated