Vulnerability in Elastic Kibana
CVE-2026-33463
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (31.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 31.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.002
Affected products
- Elastic Kibana — versions 8.0.0, 9.0.0
Weakness classification (CWE)
References
- discuss.elastic.co/t/8-19-16-9-3-5-security-update-esa-2026-33/386551 (Vendor Advisory)
Frequently asked questions
- What is CVE-2026-33463?
- CVE-2026-33463 is a medium-severity vulnerability in Elastic Kibana, classified under Operation on a Resource after Expiration or Release. CVSS score: 5.3/10. Published 2026-05-28.
- How severe is CVE-2026-33463?
- Medium severity. CVSS v3 base score is 5.3 out of 10.