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.

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 bey…

EPSS: 0.001 (21.1th percentile) — read the EPSS interpretation.

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.

Affected products

Elastic Kibana — versions 8.0.0, 9.0.0

Weakness classification (CWE)

CWE-672 — Operation on a Resource after Expiration or Release

References

security@elastic.co (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.