Unauthorized Information Disclosure in Kibana by Elastic
CVE-2026-33463

5.3MEDIUM

Key Information:

Vendor

Elastic
Status
Kibana
Vendor
CVE Published:
28 May 2026

What is CVE-2026-33463?

A logic flaw in Kibana allows an expired time-bounded access token to still be utilized, posing a risk of unauthorized information disclosure. This occurs due to improper validation of expiration timestamps, leading to potential exposure of sensitive content even after the token should have been invalidated.

Affected Version(s)

Kibana 8.0.0 <= 8.19.15

Kibana 9.0.0 <= 9.3.4

References

https://discuss.elastic.co/t/8-19-16-9-3-5-security-updat...

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.