CVE-2026-33463: CWE-672 Operation on a Resource after Expiration or Release in Elastic Kibana
CVE-2026-33463 is a medium severity vulnerability in Elastic Kibana versions 8.0.0 and 9.0.0 involving a logic error in expiration timestamp validation. This flaw allows a time-bounded access token to be used beyond its intended validity period, enabling an unauthenticated actor with the token to access associated content after expiration. The vulnerability is categorized as CWE-672, an operation on a resource after expiration or termination. There is no indication of known exploits in the wild or an official patch at this time.
AI Analysis
Technical Summary
This vulnerability in Elastic Kibana arises from improper validation of expiration timestamps for access tokens. Due to a logic error, tokens that should have expired remain usable, allowing unauthorized information disclosure by unauthenticated actors possessing such tokens. The issue affects Kibana versions 8.0.0 and 9.0.0. The CVSS 3.1 base score is 5.3, reflecting a network attack vector with low complexity, no privileges or user interaction required, and limited confidentiality impact. No official remediation or patch has been documented, and this is not a cloud service vulnerability.
Potential Impact
An unauthenticated attacker in possession of an expired time-bounded access token can retrieve content that should no longer be accessible, resulting in unauthorized information disclosure. There is no impact on integrity or availability reported. The vulnerability does not require privileges or user interaction to exploit.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or temporary workaround is documented, users should monitor Elastic's advisories for updates. Until a patch is available, restrict token distribution and consider reducing token lifetime where possible to minimize exposure.
CVE-2026-33463: CWE-672 Operation on a Resource after Expiration or Release in Elastic Kibana
Description
CVE-2026-33463 is a medium severity vulnerability in Elastic Kibana versions 8.0.0 and 9.0.0 involving a logic error in expiration timestamp validation. This flaw allows a time-bounded access token to be used beyond its intended validity period, enabling an unauthenticated actor with the token to access associated content after expiration. The vulnerability is categorized as CWE-672, an operation on a resource after expiration or termination. There is no indication of known exploits in the wild or an official patch at this time.
CVSS v3.1
Score 5.3medium
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Elastic Kibana arises from improper validation of expiration timestamps for access tokens. Due to a logic error, tokens that should have expired remain usable, allowing unauthorized information disclosure by unauthenticated actors possessing such tokens. The issue affects Kibana versions 8.0.0 and 9.0.0. The CVSS 3.1 base score is 5.3, reflecting a network attack vector with low complexity, no privileges or user interaction required, and limited confidentiality impact. No official remediation or patch has been documented, and this is not a cloud service vulnerability.
Potential Impact
An unauthenticated attacker in possession of an expired time-bounded access token can retrieve content that should no longer be accessible, resulting in unauthorized information disclosure. There is no impact on integrity or availability reported. The vulnerability does not require privileges or user interaction to exploit.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or temporary workaround is documented, users should monitor Elastic's advisories for updates. Until a patch is available, restrict token distribution and consider reducing token lifetime where possible to minimize exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- elastic
- Date Reserved
- 2026-03-20T10:53:23.100Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a189d28e29bf47b50227a17
Added to database: 05/28/2026, 19:53:12 UTC
Last enriched: 06/04/2026, 20:54:13 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 65
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